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102971 (1999 XP72)
Classification: Main-belt Asteroid          SPK-ID: 2102971
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ 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 .1151679684631753 5.5538e-08  
a 2.659503323841503 1.6339e-08 au
q 2.353213728913615 1.5445e-07 au
i 14.95818230877679 4.8159e-06 deg
node 81.10837003586549 1.8892e-05 deg
peri 313.3811760458811 2.582e-05 deg
M 339.6402648077749 1.8679e-05 deg
tp 2459290.091922783405
(2021-Mar-16.59192278)
8.249e-05 TDB
period 1584.160692538987
4.34
1.4599e-05
3.997e-08
d
yr
n .2272496734046696 2.0942e-09 deg/d
Q 2.965792918769391 1.8221e-08 au
  Orbit Determination Parameters
   # obs. used (total)      932  
   data-arc span      7765 days (21.26 yr)  
   first obs. used      1999-11-04  
   last obs. used      2021-02-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53023  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:44:29  

Additional Information
 Earth MOID = 1.38592 au 
 Jupiter MOID = 2.43734 au 
 T_jup = 3.329 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.79   n/a E2021B55  
diameter diameter 3.331 km 0.325 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.230   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

102971 (1999 XP72)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1928-Oct-24 18:13 00:01 Eunom 0.00517189822812513 0.00515736026378607 0.00518645261150401 7.77604954479818 7.77604919575038 2425544.258751658 1.37417068790743 858.766858161779 37.942880174247 32.4253669632033 10953.9093133312 T 24 CATAB v2.0f-lin.ifort 2021-Apr-13 15:44:32 2021-Apr-13 15:44
2001-Jun-14 01:33 < 00:01 Hebe 0.0468302791979386 0.0468291599141557 0.0468313985055687 4.06251125534677 4.06251122267022 2452074.564742979 0.963217056729859 126.37473674011 49.399925021983 77.1325576270793 138718.740025474 T 24 CATAB v2.0f-lin.ifort 2021-Apr-13 15:44:32 2021-Apr-13 15:44
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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