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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 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2981017902771369 1.9328e-08  
a 2.37965712063873 6.3853e-09 au
q 1.670277072730588 4.7327e-08 au
i 22.81958269671609 7.6181e-07 deg
node 291.9220376276986 1.244e-06 deg
peri 130.4750926365285 2.3157e-06 deg
M 94.80723161098364 3.5788e-06 deg
tp 2458847.390851998566
(2019-Dec-29.89085200)
1.2581e-05 TDB
period 1340.818533781436
3.67
5.3967e-06
1.478e-08
d
yr
n .2684927086924372 1.0807e-09 deg/d
Q 3.089037168546872 8.2888e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2247  
   data-arc span      31666 days (86.70 yr)  
   first obs. used      1934-07-12  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .34083  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 19:54:49  

Additional Information
 Earth MOID = .751549 au 
 Jupiter MOID = 2.36567 au 
 T_jup = 3.377 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456836.5 (2014-Jun-28.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2972947637124179 1.9244e-08  
q 1.67279822872772 4.7034e-08 au
tp 2457504.840305437735
(2016-Apr-26.34030544)
1.1104e-05 TDB
node 292.0634496900871 1.2418e-06 deg
peri 130.1942947036115 2.3371e-06 deg
i 22.79758479950392 7.6192e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2247  
   data-arc span      31666 days (86.70 yr)  
   first obs. used      1934-07-12  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .34083  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 19:54:49  

Additional Information
 Jupiter MOID = 2.36567 au 
 T_jup = 3.377 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.703385134626249E-16 -9.012817026261507E-16 -1.219225931014858E-13 -6.657605552837113E-16 8.6318239899036E-15 -1.49144378585305E-15
q -9.012817026261507E-16 2.212212067420584E-15 2.927756564769245E-13 1.361913280984409E-15 -2.308195959841012E-14 3.560730279795062E-15
tp -1.219225931014858E-13 2.927756564769245E-13 1.232897260653355E-10 2.706686159761691E-12 1.634930552820382E-11 3.439257939801208E-12
node -6.657605552837113E-16 1.361913280984409E-15 2.706686159761691E-12 1.542025601632364E-12 -2.858187628708476E-13 2.000168405516941E-13
peri 8.6318239899036E-15 -2.308195959841012E-14 1.634930552820382E-11 -2.858187628708476E-13 5.462242816982418E-12 5.024129144392026E-13
i -1.49144378585305E-15 3.560730279795062E-15 3.439257939801208E-12 2.000168405516941E-13 5.024129144392026E-13 5.805233205766448E-13

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.21   n/a MPCxxxxx  
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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