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 ]  
175791 (1999 RM68)
Classification: Main-belt Asteroid          SPK-ID: 2175791
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1113374594616805 4.8057e-08  
a 2.348805069240799 1.3167e-08 au
q 2.087295080060812 1.1884e-07 au
i 7.137284386546533 4.0997e-06 deg
node 148.7661566790311 3.2539e-05 deg
peri 208.9457681798468 3.7439e-05 deg
M 316.8337800700525 1.9202e-05 deg
tp 2459358.155965493718
(2021-May-23.65596549)
7.0717e-05 TDB
period 1314.82783690222
3.60
1.1056e-05
3.027e-08
d
yr
n .2738001051515401 2.3023e-09 deg/d
Q 2.610315058420786 1.4633e-08 au
  Orbit Determination Parameters
   # obs. used (total)      321  
   data-arc span      7678 days (21.02 yr)  
   first obs. used      1999-08-12  
   last obs. used      2020-08-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54027  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:06:50  

Additional Information
 Earth MOID = 1.08367 au 
 Jupiter MOID = 2.808 au 
 T_jup = 3.540 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457730.5 (2016-Dec-08.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1111313877664445 4.8067e-08  
q 2.086783616089249 1.1869e-07 au
tp 2458045.913246664438
(2017-Oct-19.41324666)
6.6842e-05 TDB
node 148.7962614322944 3.2563e-05 deg
peri 209.4764297299921 3.7493e-05 deg
i 7.135298021242362 4.0987e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      321  
   data-arc span      7678 days (21.02 yr)  
   first obs. used      1999-08-12  
   last obs. used      2020-08-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54027  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:06:50  

Additional Information
 Jupiter MOID = 2.808 au 
 T_jup = 3.540 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.310478259324601E-15 -5.683734062448873E-15 -1.140141677879584E-13 2.054001350614371E-14 4.511375572599868E-14 -4.077588161913248E-16
q -5.683734062448873E-15 1.408698206708153E-14 5.052985897738925E-13 -5.070837602597538E-14 -5.519178960634903E-14 1.607933272347322E-15
tp -1.140141677879584E-13 5.052985897738925E-13 4.467888469376597E-9 -3.347864116083079E-13 1.2518868113562E-9 6.205455813470845E-12
node 2.054001350614371E-14 -5.070837602597538E-14 -3.347864116083079E-13 1.060347302917549E-9 -1.050986057884235E-9 5.693685017645984E-12
peri 4.511375572599868E-14 -5.519178960634903E-14 1.2518868113562E-9 -1.050986057884235E-9 1.405705219356609E-9 -3.980487237285767E-12
i -4.077588161913248E-16 1.607933272347322E-15 6.205455813470845E-12 5.693685017645984E-12 -3.980487237285767E-12 1.679932473307833E-11

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 16.95   n/a E2021B55  
diameter diameter 2.084 km 0.461 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.078   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

175791 (1999 RM68)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20080221/Numbers.arcLast Updated: 2008-02-22

[ show close-approach data ]
Alternate Designations
 1999 RM68 = 2003 UY282 
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-16 15:30 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin