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
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 ]  
6821 Ranevskaya (1986 SZ1)
Classification: Main-belt Asteroid          SPK-ID: 2006821
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .151915496752981 3.4777e-08  
a 2.579112567416961 1.0093e-08 au
q 2.187305400555957 8.9261e-08 au
i 12.62063022126934 3.4933e-06 deg
node 256.7876282660771 1.938e-05 deg
peri 197.8552155770721 2.3254e-05 deg
M 314.467155422017 1.4366e-05 deg
tp 2459191.848981750308
6.0828e-05 TDB
period 1512.877881199189
n .2379570780125653 1.3968e-09 deg/d
Q 2.970919734277965 1.1626e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1828  
   data-arc span      28538 days (78.13 yr)  
   first obs. used      1941-11-16  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39856  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 20:36:40  

Additional Information
 Earth MOID = 1.20702 au 
 Jupiter MOID = 2.26072 au 
 T_jup = 3.376 
[ 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 12.7   n/a MPO502218  
rotation period rot_per 2.81 h n/a LCDB (Rev. 2019-August); 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:
[Carbo, L.; Green, D.; Kragh, K.; Krotz, J.; et al. (2009) Minor Planet Bull. 36, 152-157.]

6821 Ranevskaya (1986 SZ1)          Discovered 1986-Sep-29 by Karachkina, L. G. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2138-Dec-02 12:23 < 00:01 Psych 0.0438581564997125 0.0438571844477187 0.0438591285774209 4.79561179776317 4.79561174023789 2502284.016164024 0.73608416982788 728.528806230214 48.3150098977754 -89.7197068598392 135709.52793269 T 29 CATAB v2.0f-lin.ifort 2020-Jan-28 20:37:10 2020-Jan-28 20:37

Alternate Designations
 1986 SZ1 = 1938 BJ = 1941 WM = 1992 AS 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2020-May-31 08:37 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin