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2000 Herschel (1960 OA)
Classification: Main-belt Asteroid          SPK-ID: 2002000
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2969734931579714 3.6739e-08  
a 2.380740896971893 9.5093e-09 au
q 1.673723956494107 8.9103e-08 au
i 22.79497737662379 7.3523e-06 deg
node 292.0611243582773 1.4278e-05 deg
peri 130.1925403400216 1.962e-05 deg
M 331.9571287594493 1.2446e-05 deg
tp 2457505.016919905418
(2016-Apr-26.51691991)
4.6596e-05 JED
period 1341.734619226226
3.67
8.0388e-06
2.201e-08
d
yr
n .2683093920671218 1.6075e-09 deg/d
Q 3.087757837449678 1.2333e-08 au
  Orbit Determination Parameters
   # obs. used (total)      919  
   data-arc span      29744 days (81.43 yr)  
   first obs. used      1934-07-12  
   last obs. used      2015-12-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .42666  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 12:41:43  

Additional Information
 Earth MOID = .755311 au 
 Jupiter MOID = 2.37453 au 
 T_jup = 3.377 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.25 mag n/a PDS3 (MPC 17264)  
rotation period rot_per 130. h n/a LCDB (Rev. 2015-December); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Warner, B.D. (2011) Minor Planet Bul. 38, 96-101.]
B-V BV .893 mag .028 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=4; phase (min.=21.55, mean=24.12, max.=26.77) deg.
U-B UB .494 mag .071 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #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 | Physical Parameters | Discovery Circumstances ]
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