+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   101871 (1999 NV1) Classification: Main-belt Asteroid          SPK-ID: 2101871 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 24 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1232478722048995 4.9108e-08   a 2.335143169246968 1.3078e-08 au q 2.047341742343474 1.1428e-07 au i 22.24392412962978 5.2737e-06 deg node 291.2720067410594 1.0746e-05 deg peri 24.9245545895636 2.0218e-05 deg M 10.83522801907717 1.9658e-05 deg tp 2459161.271269840665 (2020-Nov-07.77126984) 7.1015e-05 TDB period 1303.372926946791 3.57 1.0949e-05 2.998e-08 d yr n .2762064429582068 2.3204e-09 deg/d Q 2.622944596150462 1.469e-08 au   Orbit Determination Parameters    # obs. used (total)      730      data-arc span      7714 days (21.12 yr)      first obs. used      1999-07-12      last obs. used      2020-08-24      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .51593      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 15:39:07   Additional Information  Earth MOID = 1.04176 au   Jupiter MOID = 2.6346 au   T_jup = 3.459  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 15.32   n/a E2021B55   diameter diameter 5.526 km 0.039 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   geometric albedo albedo 0.062   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   101871 (1999 NV1)          Discovered 1999-Jul-12 by LINEAR at Socorro Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 Alternate Designations  1999 NV1 = 2001 AC12  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-21 12:16 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin