• Processing (Info)

    • This page provides new unpublished observations of NEOs (q<1.3 AU), TNOs (distanct objects, q>5.6 AU) and unnumbered periodic comets that are extending the arc from one opposition to multiple oppositions. Additional observations are highly desirable. Once new observations provide at least two distinct nights on the second apparition, recovery MPEC will be issued and unpublished observations will be removed from this page. Two distinct nights are defined as obsevations separated by > 0.75 day, alternatively by > 0.5 day from at least three distinct obscodes. Single nights on two additional apparitions can also result in recovery MPEC. The algorithm itself search for additional observations from the isolated tracklet file, if those are found on the same apparition, the observations will be processed immediately. Objects with observational arc less than 238 days (= 17 2-week periods) are considered 1-opposition by definition. For objects with arc 238 days or more, we calculate the times of solar conjunction from the fitted orbit and determine the number of apparitions from there. The pipeline running the page automatically searches the isolated tracklet file and adds the tracklets to the page, therefore, it may happen that there would be a tracklet in the same (single) apparition as the published orbit - it can be removed and accepted to the existing single-apparition orbit by submitting the identification to the Identifications pipeline. Note, that occasionally the page could also show tracklets that do not belong to the object, as they might be misidentified by the submitter or by the MPC identification routine, therefore, having the confirmation tracklets on the second night is crucial. There are several paths for a tracklet to reach this page: - Submitted with a designation by an observer. - Submitted as an unknown tracklet, identified by the MPC. - Identified in the ITF by the recovery pipeline looking for more tracklets matching tracklets already on the recovery page. - Submitted through the identifications pipeline (found in the ITF) - Moved from NEOCP

    NEO observations waiting for recovery MPEC

    NEO recovery MPECs are issued once per day, automatically at 14:00 UTC and the table is updates once per hour or when new observations are added. The table provides link to the current orbit (Object), unpublished astrometry in obs80 (old) and ADES XML (new) format, number of tracklets and nights for the unpublished astrometry, time stamp of when the latest unpublished astrometry was added, new (possible) orbit with included unpublished astrometry and the date when the recovery MPEC will be issued. The MPEC is issued when the new arc leads to a multi-opposition orbit and at least two distinct nights are provided on a second apparition (a single position does not count as a distinct night). There is a minimum 24 hour period between when conditions are met and MPEC is issued. The last three columns show the current date (0:00 UTC) geocentric sky-plane position in RA, DEC; solar elongation (deg) and apparent V-band magnitude.

    Last updated at 2025/03/27 16:46:32 UTC


      Object     obs80     XML     Tracklets     Nights     Last updated     Possible orbit     Publishable on     Current RA, DEC (geocentric)     Current solar elong. (deg)     Current mag   
    K08H03E obs80 ADES 112025/03/27 12:05:05K08H03E N/A16 53 22.6 -10 47 37112.422.0
    K11S12T obs80 ADES 212024/09/11 14:55:29K11S12T N/A16 45 20.8 -31 56 19111.926.4
    K11UF8V obs80 ADES 112023/10/12 10:45:06K11UF8V N/A21 04 34.6 -21 27 5154.027.6
    K11V05O obs80 ADES 112024/08/31 10:15:32K11V05O N/A05 13 53.6 +13 04 2472.724.1
    K14Qh4J obs80 ADES 222024/09/22 10:55:25K14Qh4J N/A05 00 51.1 +21 37 1370.127.6
    K15Bp0M obs80 ADES 112023/10/17 09:32:43K15Bp0M N/A04 42 33.3 +20 49 1365.727.0
    K15F33S obs80 ADES 732025/03/27 01:25:05K15F33S 2025-03-2813 43 15.1 -00 43 36159.820.2
    K16Q10Y obs80 ADES 222025/02/27 09:25:37K16Q10Y N/A14 15 41.5 +02 30 03151.425.5
    K16X24K obs80 ADES 222025/02/08 05:45:24K16X24K N/A20 53 35.3 -44 12 4065.932.3
    K17H04Z obs80 ADES 112023/04/26 18:26:23K17H04Z N/A20 39 22.4 -18 28 4458.828.0
    K18T02Q obs80 ADES 112025/02/09 22:15:06K18T02Q N/A22 41 36.3 -03 10 5725.925.2
    K19N02B obs80 ADES 112025/02/02 21:25:04K19N02B N/A09 16 15.4 +12 33 24131.324.9
    K19U11B obs80 ADES 112023/10/17 09:33:24K19U11B N/A11 27 36.3 -05 58 11165.823.8
    K19W05J obs80 ADES 332025/03/27 16:45:30K19W05J 2025-03-2808 31 26.3 +12 49 07120.627.7
    K20O06M obs80 ADES 112023/09/25 11:11:21K20O06M N/A00 55 42.5 +08 12 4610.027.8
    K20P01B obs80 ADES 112024/03/01 03:15:08K20P01B N/A14 38 16.2 -19 44 32142.726.1
    K20Y00S obs80 ADES 222024/10/15 10:15:10K20Y00S N/A00 38 00.5 +19 10 4717.126.2
    K20Y05F obs80 ADES 112023/10/17 09:33:04K20Y05F N/A15 37 37.4 -43 32 32120.525.1
    K21U03N obs80 ADES 222024/06/06 11:35:04K21U03N N/A04 06 40.2 +15 29 2656.627.2
    K21X02G obs80 ADES 222024/02/20 10:15:07K21X02G N/A20 39 05.1 -21 33 0559.725.4
    K22J01H obs80 ADES 222024/08/03 10:15:47K22J01H N/A00 46 54.3 -01 27 187.226.4
    K22M00N obs80 ADES 112023/09/13 02:25:37K22M00N N/A16 11 31.3 -14 14 06122.425.7
    K22O01N obs80 ADES 112024/08/08 11:01:35K22O01N N/A14 21 09.6 -14 21 15148.525.2
    K22U04F obs80 ADES 112024/06/07 15:00:03K22U04F N/A20 56 36.4 -26 01 4757.426.6
    K22U11S obs80 ADES 112024/01/05 15:05:21K22U11S N/A22 44 17.5 -05 47 4126.027.0
    K22W07L obs80 ADES 222024/11/16 11:15:11K22W07L N/A06 04 53.0 -01 02 4785.624.7
    K23D00A obs80 ADES 222024/05/31 10:15:08K23D00A N/A05 13 02.9 +23 06 1173.026.9
    K23F05H obs80 ADES 212023/04/13 06:37:38K23F05H N/A22 20 55.3 -28 49 5142.827.8
    K23U01O obs80 ADES 112025/01/31 21:35:04K23U01O N/A17 59 25.5 -33 23 2496.223.2
    K24B00F obs80 ADES 222025/03/27 13:06:46K24B00F 2025-03-2815 30 58.8 -35 05 49125.621.4
    K24H00J obs80 ADES 222025/03/01 10:46:00K24H00J N/A10 49 59.8 -11 25 26155.323.8
    K24J16R obs80 ADES 222024/09/20 19:35:07K24J16R N/A17 32 09.5 -32 31 51102.023.1
    K24M02B obs80 ADES 442025/02/20 05:14:57K24M02B N/A09 08 17.0 +42 31 37117.224.2
    K24Y07A obs80 ADES 112025/03/01 21:54:42K24Y07A N/A16 08 25.5 +55 03 09106.323.1

    obs80 format astrometry, last updated at 2025/03/27 16:46:32 UTC
    XML ADES format astrometry, last updated at 2025/03/27 16:46:32 UTC
    NEO table in JSON, last updated at 2025/03/27 16:46:32 UTC

    TNO observations waiting for recovery MPEC


    Last updated at 2025/03/27 16:46:32 UTC


      Object     obs80     XML     Tracklets     Nights     Last updated   
    J99CD2Aobs80 ADES 112025/01/13 12:44:35
    K03UT2Gobs80 ADES 112025/01/13 12:44:35
    K04O12Lobs80 ADES 112025/01/13 12:44:35
    K06HC2Sobs80 ADES 112025/01/13 12:44:35
    K09K36Vobs80 ADES 112025/01/13 14:10:10
    K15Fn4Zobs80 ADES 112025/03/12 03:28:33
    K16Ga8Robs80 ADES 112025/01/13 12:44:35
    K16Gd0Robs80 ADES 112025/01/13 12:44:35
    K17BN7Gobs80 ADES 112025/01/13 12:44:35
    K17BN7Oobs80 ADES 112025/01/13 12:44:35
    K17BP4Sobs80 ADES 112025/01/13 12:44:35
    K17C54Nobs80 ADES 112025/01/13 12:44:35
    K17C60Dobs80 ADES 112025/01/13 12:44:35
    K17DG6Oobs80 ADES 112025/01/13 12:44:35
    K19GI4Xobs80 ADES 112025/01/13 12:44:35
    K19GI8Nobs80 ADES 112025/02/07 15:43:06
    K19JE7Xobs80 ADES 112025/01/13 12:44:35
    K19V51Eobs80 ADES 112025/01/13 12:44:35
    K20K11Robs80 ADES 112025/02/06 15:47:17
    K20K11Tobs80 ADES 112025/02/06 15:47:26
    K20K11Xobs80 ADES 112025/02/06 15:47:19
    K20K53Fobs80 ADES 112025/02/06 15:47:19
    K20K53Gobs80 ADES 112025/02/06 15:47:18
    K20K53Sobs80 ADES 112025/01/13 12:44:35
    K20K53Xobs80 ADES 112025/02/06 15:47:17
    K20K53Zobs80 ADES 112025/02/06 15:47:21
    K20K54Fobs80 ADES 112025/01/13 12:44:35
    K20K55Kobs80 ADES 112025/01/13 12:44:35
    K20K55Pobs80 ADES 112025/01/13 12:44:35
    K20K55Sobs80 ADES 112025/01/13 12:44:35
    K20K56Gobs80 ADES 112025/01/13 12:44:35
    K20K56Hobs80 ADES 112025/01/13 12:44:35
    K21L44Nobs80 ADES 112025/02/06 15:47:16
    K21M22Wobs80 ADES 112025/02/06 15:47:16
    K22H05Wobs80 ADES 332025/01/13 12:44:35
    K22L14Nobs80 ADES 112025/02/06 15:47:25
    K22L14Oobs80 ADES 112025/02/06 15:47:22
    K22L14Qobs80 ADES 112025/02/06 15:47:23
    K22L15Fobs80 ADES 112025/02/06 15:47:20
    K22L15Xobs80 ADES 112025/02/06 15:47:18
    K22L16Dobs80 ADES 112025/02/06 15:47:24
    K22L16Lobs80 ADES 112025/02/06 15:47:23
    K22L16Nobs80 ADES 112025/02/06 15:47:24
    K22L16Qobs80 ADES 112025/02/06 15:47:20
    K22L16Vobs80 ADES 112025/02/06 15:47:25
    K22L16Zobs80 ADES 112025/02/06 15:47:22
    K22L17Eobs80 ADES 112025/02/06 15:47:21
    K23V17Qobs80 ADES 112025/03/04 19:20:43

    obs80 format astrometry, last updated at 2025/03/27 16:46:32 UTC
    XML ADES format astrometry, last updated at 2025/03/27 16:46:32 UTC
    TNO table in JSON, last updated at 2025/03/27 16:46:32 UTC


    Comets observed on a new apparition, more astrometry desired


    Last updated at 2025/03/27 16:46:32 UTC

      Object     obs80     XML     Tracklets     Nights     Last updated     Possible orbit     Current RA, DEC (geocentric)     Current solar elong. (deg)     Current mag   
    PK03Q29X obs80 ADES 222025/03/02 14:16:56PK03Q29X 19 51 20.0 -17 16 4269.722.6
    PK10H020 obs80 ADES 112025/03/27 13:37:36PK10H020 13 42 53.9 +05 58 25158.316.5

    obs80 format astrometry, last updated at 2025/03/27 16:46:32 UTC
    XML ADES format astrometry, last updated at 2025/03/27 16:46:32 UTC
    NEO table in JSON, last updated at 2025/03/27 16:46:32 UTC

    Fast-moving archival ITF tracklets

    Observers occasionally report fast-moving tracklets from archives or with a significant delay. If these are natural objects, they might be NEOs based on their rate of motion. Submitting with a long delay isn't beneficial for posting to NEOCP, but increased archive availability allows submitters to search and report archival precoveries. The listed files include objects moving >0.5 deg within a night havig >=4 detections. Please, submit follow-up astrometry with the matching trksub, the confirmation would lead to object designation and a discovery MPEC (manual procedure).Long-arc obs80 Long-arc XML ADES