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275 Sapientia (A888 GB)
Classification: Main-belt Asteroid          SPK-ID: 2000275
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 88 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1636712734975528 2.6598e-08  
a 2.77043244256864 6.5434e-09 au
q 2.316992236554495 7.391e-08 au
i 4.764003112849553 3.2546e-06 deg
node 134.044905942544 3.6822e-05 deg
peri 39.63094341795293 3.8268e-05 deg
M 240.6568534497463 1.0989e-05 deg
tp 2459558.860588878324
(2021-Dec-10.36058888)
5.2183e-05 TDB
period 1684.301259071917
4.61
5.9672e-06
1.634e-08
d
yr
n .2137384853576414 7.5724e-10 deg/d
Q 3.223872648582785 7.6144e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3173  
   data-arc span      46966 days (128.59 yr)  
   first obs. used      1891-12-31  
   last obs. used      2020-08-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45205  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:13:24  

Additional Information
 Earth MOID = 1.32479 au 
 Jupiter MOID = 1.74594 au 
 T_jup = 3.313 
[ 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 8.9   n/a MPO502155  
diameter diameter 103 km n/a Dunham occult. list: Stamm 1985b Yeomans E-mail 2001-Apr-04
rotation period rot_per 14.931 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2007) Minor Planet Bull. 34, 72-77.]
[Pilcher, F. (2015) Minor Planet Bull. 42, 38-39.]
[Pilcher, F. (2016) Minor Planet Bull. 43, 135-136.]
geometric albedo albedo 0.049   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.723   0.007 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=4.95, mean=9.19, max.=15.47) deg.
U-B UB 0.324   0.025 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=5; phase (min.=4.95, mean=10.51, max.=15.79) deg.
Tholen spectral type spec_T X   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 4 color indices
SMASSII spectral type spec_B C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

275 Sapientia (A888 GB)          Discovered 1888-Apr-15 by Palisa, J. at Vienna
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 A888 GB = 1962 GE = 1962 HA = A906 AB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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