Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
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 ]

[ hide orbit diagram ]

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.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 87 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1636712742657082 2.663e-08  
a 2.770432442874279 6.5528e-09 au
q 2.316992234681987 7.3982e-08 au
i 4.764003082554123 3.2618e-06 deg
node 134.0449048162007 3.6823e-05 deg
peri 39.6309446571421 3.827e-05 deg
M 240.6568531481216 1.0984e-05 deg
tp 2459558.860590381909
(2021-Dec-10.36059038)
5.2157e-05 TDB
period 1684.30125935064
4.61
5.9757e-06
1.636e-08
d
yr
n .2137384853222714 7.5832e-10 deg/d
Q 3.223872651066571 7.6253e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3138  
   data-arc span      46785 days (128.09 yr)  
   first obs. used      1891-12-31  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45358  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:22:45  

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

[ show close-approach data ]
Alternate Designations
 A888 GB = 1962 GE = 1962 HA = A906 AB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jun-04 21:18 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin