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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2971625187199456 3.8525e-08  
a 2.380739274216168 1.0259e-08 AU
q 1.673272795074596 9.2548e-08 AU
i 22.79740810390755 7.7212e-06 deg
node 292.0635830494757 1.4862e-05 deg
peri 130.1949639231313 2.0405e-05 deg
M 224.6511331128576 1.2458e-05 deg
tp 2457504.950207501424
(2016-Apr-26.45020750)
4.7388e-05 JED
period 1341.733247400863
3.67
8.6727e-06
2.374e-08
d
yr
n .2683096663941015 1.7343e-09 deg/d
Q 3.088205753357739 1.3308e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      800  
   data-arc span      29562 days (80.94 yr)  
   first obs. used      1934-07-12  
   last obs. used      2015-06-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .44316  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 11:40:57  

Additional Information
 Earth MOID = .755051 AU 
 T_jup = 3.376 
[ 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-July); 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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