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 ]  
20580 Marilpeters (1999 RG151)
Classification: Main-belt Asteroid          SPK-ID: 2020580
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1954805005485588 3.1722e-08  
a 2.373209569412711 9.3094e-09 au
q 1.909293374877285 7.7405e-08 au
i 3.125325546102479 3.6399e-06 deg
node 68.70541248536351 7.3623e-05 deg
peri 209.937892952268 7.4872e-05 deg
M 337.2101485137071 1.7504e-05 deg
tp 2459285.035973336154
(2021-Mar-11.53597334)
6.5207e-05 TDB
period 1335.372914532581
3.66
7.8574e-06
2.151e-08
d
yr
n .2695876156257149 1.5863e-09 deg/d
Q 2.837125763948138 1.1129e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1674  
   data-arc span      10675 days (29.23 yr)  
   first obs. used      1991-03-22  
   last obs. used      2020-06-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52112  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:24:25  

Additional Information
 Earth MOID = .891774 au 
 Jupiter MOID = 2.2948 au 
 T_jup = 3.515 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456843.5 (2014-Jul-05.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1962225407248873 3.1697e-08  
q 1.907505956556702 7.7403e-08 au
tp 2456613.424439870551
(2013-Nov-16.92443987)
5.7438e-05 TDB
node 68.7533052327579 7.3627e-05 deg
peri 209.8291105613292 7.4865e-05 deg
i 3.12563463829829 3.6396e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1674  
   data-arc span      10675 days (29.23 yr)  
   first obs. used      1991-03-22  
   last obs. used      2020-06-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52112  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:24:25  

Additional Information
 Jupiter MOID = 2.2948 au 
 T_jup = 3.515 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.004674959980366E-15 -2.442396969003995E-15 -2.591189391612007E-13 4.676668708943224E-17 -4.992137515859006E-14 1.00398191375768E-16
q -2.442396969003995E-15 5.991221456483216E-15 7.721459391334016E-13 -4.897439890987276E-16 1.551965258156931E-13 -8.084218264341839E-17
tp -2.591189391612007E-13 7.721459391334016E-13 3.299115032437451E-9 -2.61301743610424E-12 7.976808287479945E-10 1.463294061755791E-12
node 4.676668708943224E-17 -4.897439890987276E-16 -2.61301743610424E-12 5.420903673805919E-9 -5.413135298138736E-9 -3.470590825624151E-11
peri -4.992137515859006E-14 1.551965258156931E-13 7.976808287479945E-10 -5.413135298138736E-9 5.60476885028379E-9 3.500067919848903E-11
i 1.00398191375768E-16 -8.084218264341839E-17 1.463294061755791E-12 -3.470590825624151E-11 3.500067919848903E-11 1.324646750938376E-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 14.56   n/a E2021B10  
diameter diameter 3.658 km 0.220 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.14 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]
geometric albedo albedo 0.252   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20580 Marilpeters           Discovered 1999 Sept. 9 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Marilyn Peters mentored a finalist in the 2004 Discovery Channel Youth Science Challenge (DCYSC), a middle school science competition. She teaches at the St. Vincent de Paul Parish School, Cape Girardeau, Missouri.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20041028/MPCPages.arcLast Updated: 2004-10-29

[ show close-approach data ]
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-12 15:49 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin