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 ]  
1806 Derice (1971 LC)
Classification: Main-belt Asteroid          SPK-ID: 2001806
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1072108819035587 3.4607e-08  
a 2.236434401853967 5.1502e-09 au
q 1.996664297311745 7.8606e-08 au
i 3.843525374446064 3.6712e-06 deg
node 271.0647574715593 5.3885e-05 deg
peri 193.6147893337039 5.7146e-05 deg
M 67.80091523313767 1.8186e-05 deg
tp 2458970.426961185052
(2020-Apr-30.92696118)
6.159e-05 TDB
period 1221.610264235781
3.34
4.2198e-06
1.155e-08
d
yr
n .2946930052402678 1.018e-09 deg/d
Q 2.476204506396188 5.7023e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2821  
   data-arc span      25993 days (71.16 yr)  
   first obs. used      1949-11-25  
   last obs. used      2021-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44206  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 00:58:18  

Additional Information
 Earth MOID = 1.0136 au 
 Jupiter MOID = 2.63085 au 
 T_jup = 3.627 
[ 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 12.08   n/a E2021B10  
diameter diameter 7.976 km 0.759 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 3.2240 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Pray, D.P.; Galad, A.; Husark, M.; Oey, J. (2008) Minor Planet Bull. 35, 34-37.]
[Pravec, P.; Wolf, M.; Sarounova, L. (2009) http://www.asu.cas.cz/~ppravec/neo.htm]
[Pravec, P.; Wolf, M.; Sarounova, L. (2011) http://www.asu.cas.cz/~ppravec/neo.htm]
[Pravec, P.; Wolf, M.; Sarounova, L. (2012) http://www.asu.cas.cz/~ppravec/neo.htm]
[Pravec, P.; Wolf, M.; Sarounova, L. (2016) http://www.asu.cas.cz/~ppravec/neo.htm]
[Aznar, A.M. (2017) Minor Planet Bull. 44, 139-141.]
[Stephens, R.D.; Warner, B.D. (2020) Minor Planet Bull. 47, 224-230.]
geometric albedo albedo 0.035   0.149 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1806 Derice           Discovered 1971 June 13 at the Perth Observatory.
Named in honor of the wife of Dennis Harwood, member of the astrometric team at the Perth Observatory.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC 6530Last Updated: 2006-03-21

[ show close-approach data ]
Alternate Designations
 1971 LC = 1927 EB = 1942 TD = 1949 YD = 1967 EB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Mar-07 09:54 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin