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 ]  
3843 OISCA (1987 DM)
Classification: Outer Main-belt Asteroid          SPK-ID: 2003843
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1437425135310511 1.9588e-08  
a 3.985480633416067 2.7912e-08 au
q 3.412597629539516 8.2393e-08 au
i 3.927381182884202 8.1894e-07 deg
node 28.29078421052123 1.419e-05 deg
peri 23.6935585510002 1.605e-05 deg
M 166.0416568363231 6.2907e-06 deg
tp 2457860.101173091491
(2017-Apr-16.60117309)
4.9578e-05 TDB
period 2906.159736545718
7.96
3.0529e-05
8.358e-08
d
yr
n .1238748150946095 1.3013e-09 deg/d
Q 4.558363637292618 3.1924e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2690  
   data-arc span      24579 days (67.29 yr)  
   first obs. used      1953-12-07  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43116  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:14:44  

Additional Information
 Earth MOID = 2.42319 au 
 Jupiter MOID = .860471 au 
 T_jup = 3.034 
[ 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 10.79   n/a E2021B10  
diameter diameter 30.769 km 0.415 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
rotation period rot_per 19.089 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:
[Dahlgren, M.; Lahulla, J.F.; Lagerkvist, C.-I.; Lagerros, J.; et al. (1998) Icarus 133, 247-285.]
[Warner, B.D.; Stephens, R.D.; Coley, D.R. (2017) Minor Planet Bull. 44, 36-41.]
geometric albedo albedo 0.108   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  

3843 OISCA (1987 DM)          Discovered 1987-Feb-28 by Oshima, Y. at Gekko
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1987 DM = 1976 SR4 = 1980 GK 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-May-09 22:31 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin