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 ]  
1001 Gaussia (A923 PD)
Classification: Outer Main-belt Asteroid          SPK-ID: 2001001
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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 57 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1227149348679733 3.3208e-08  
a 3.219074666626717 1.5438e-08 au
q 2.824046128576477 1.0567e-07 au
i 9.322805207977611 3.9277e-06 deg
node 259.1759416595884 2.3212e-05 deg
peri 143.8238532219924 2.8856e-05 deg
M 222.2599857082246 1.754e-05 deg
tp 2459407.646978302038
(2021-Jul-12.14697830)
0.00010444 TDB
period 2109.575156375484
5.78
1.5176e-05
4.155e-08
d
yr
n .1706504738226655 1.2276e-09 deg/d
Q 3.614103204676958 1.7332e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2477  
   data-arc span      40846 days (111.83 yr)  
   first obs. used      1908-01-01  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45572  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 01:59:46  

Additional Information
 Earth MOID = 1.83964 au 
 Jupiter MOID = 1.77725 au 
 T_jup = 3.157 
[ 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 9.7   n/a MPO435705  
diameter diameter 72.711 km 0.298 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 20.99 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Aznar, A.; Garceran, A.C.; Mansego, E.A.; Rodriguez, P.B.; et al. (2016) Minor Planet Bull. 43, 174-181.]
geometric albedo albedo 0.041   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.689   0.031 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=6; phase (min.=3.64, mean=12.51, max.=19.85) deg.
U-B UB 0.265   0.034 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=6; phase (min.=3.64, mean=12.51, max.=19.85) deg.
Tholen spectral type spec_T PC   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo

1001 Gaussia (A923 PD)          Discovered 1923-Aug-08 by Belyavskij, S. at Simeis
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A923 PD = A907 XC = A911 MD 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-16 13:57 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin