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
JPL Small-Body Database Browser
Search: [ help ]  
6901 Roybishop (1989 PA)
Classification: Inner Main-belt Asteroid          SPK-ID: 2006901
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1116510579766093 3.9973e-08  
a 1.942563366893158 5.972e-09 au
q 1.725674111792932 7.9641e-08 au
i 23.15074012753632 3.8727e-06 deg
node 285.3006738254973 1.2661e-05 deg
peri 124.8878438114149 3.3158e-05 deg
M 124.4232271948837 2.7951e-05 deg
tp 2458858.709348913684
(2020-Jan-10.20934891)		 7.6845e-05 TDB
period 988.920133041954
2.71		 4.5603e-06
1.249e-08		 d
yr
n .3640334421068231 1.6787e-09 deg/d
Q 2.159452621993383 6.6388e-09 au
   Orbit Determination Parameters
   # obs. used (total)      2754  
   data-arc span      16068 days (43.99 yr)  
   first obs. used      1977-01-20  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .29478  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:34:02  

Additional Information
 Earth MOID = .793892 au 
 Jupiter MOID = 3.12663 au 
 T_jup = 3.795 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.74   n/a E2021B10  
diameter diameter 5.050 km 0.097 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 4.766 h n/a LCDB (Rev. 2020-October); 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. (2009) Minor Planet Bull. 36, 7-13.]
[Warner, B.D.; Coley, D. (2012) Minor Planet Bull. 39, 83.]
[Warner, B.D. (2015) Minor Planet Bull. 42, 183-186.]
[Stephens, R.D.; Warner, B.D. (2020) Minor Planet Bull. 47, 50-60.]
geometric albedo albedo 0.191   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

6901 Roybishop (1989 PA)          Discovered 1989-Aug-02 by Shoemaker, C. S. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1989 PA = 1977 BL 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Mar-05 17:38 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin