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2000 Herschel (1960 OA)
Classification: Main-belt Asteroid          SPK-ID: 2002000
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2981017906800558 1.9352e-08  
a 2.379657120513249 6.3903e-09 au
q 1.670277071683704 4.7393e-08 au
i 22.81958269443998 7.6188e-07 deg
node 291.9220376312493 1.2441e-06 deg
peri 130.4750926598489 2.3165e-06 deg
M 94.8072316675941 3.5808e-06 deg
tp 2458847.390851815651
(2019-Dec-29.89085182)
1.2587e-05 TDB
period 1340.818533675382
3.67
5.4009e-06
1.479e-08
d
yr
n .268492708713674 1.0815e-09 deg/d
Q 3.089037169342793 8.2952e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2235  
   data-arc span      31649 days (86.65 yr)  
   first obs. used      1934-07-12  
   last obs. used      2021-03-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .34142  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 13:13:09  

Additional Information
 Earth MOID = .751549 au 
 Jupiter MOID = 2.36567 au 
 T_jup = 3.377 
[ 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 11.22   n/a E2021B10  
diameter diameter 14.768 km 0.348 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 133.6 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2011) Minor Planet Bull. 38, 96-101.]
[Pilcher, F.; Franco, L.; Gao, X.; Marchini, A.; et al. (2020) Minor Planet Bull. 47, 142-143.]
[Polakis, T. (2020) Minor Planet Bull. 47, 94-101.]
geometric albedo albedo 0.277   0.060 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
B-V BV 0.893   0.028 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=21.55, mean=24.12, max.=26.77) deg.
U-B UB 0.494   0.071 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=21.55, mean=23.24, max.=26.57) deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

2000 Herschel (1960 OA)          Discovered 1960-Jul-29 by Schubart, J. at Sonneberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1960 OA = 1934 NX 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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