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 ]  
74649 (1999 RF73)
Classification: Main-belt Asteroid          SPK-ID: 2074649
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1012323847593918 4.1433e-08  
a 2.231381352120222 8.4699e-09 au
q 2.005493296537456 9.5268e-08 au
i 3.143132098171398 4.5444e-06 deg
node 235.117478693875 7.4916e-05 deg
peri 201.984451976654 7.8654e-05 deg
M 359.8821465875162 2.444e-05 deg
tp 2459000.898564659340
(2020-May-31.39856466)
8.2653e-05 TDB
period 1217.472403544484
3.33
6.932e-06
1.898e-08
d
yr
n .2956945873696317 1.6836e-09 deg/d
Q 2.457269407702988 9.3274e-09 au
  Orbit Determination Parameters
   # obs. used (total)      616  
   data-arc span      9450 days (25.87 yr)  
   first obs. used      1994-01-10  
   last obs. used      2019-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56335  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 07:26:55  

Additional Information
 Earth MOID = 1.02112 au 
 Jupiter MOID = 2.73509 au 
 T_jup = 3.633 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457131.5 (2015-Apr-19.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1009552433816419 4.1358e-08  
q 2.005970766540061 9.5076e-08 au
tp 2456564.022018118947
(2013-Sep-28.52201812)
7.8211e-05 TDB
node 235.1443048861915 7.495e-05 deg
peri 201.4657720780004 7.8719e-05 deg
i 3.141742856254242 4.5452e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      616  
   data-arc span      9450 days (25.87 yr)  
   first obs. used      1994-01-10  
   last obs. used      2019-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56335  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 07:26:55  

Additional Information
 Jupiter MOID = 2.73509 au 
 T_jup = 3.633 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.710517217168597E-15 -3.920865400017507E-15 -4.997713942443646E-13 6.742650823649313E-15 -1.241378081717917E-13 -1.179453495826525E-15
q -3.920865400017507E-15 9.039484719370718E-15 1.277331614826626E-12 -1.490641488834232E-14 3.301472792961388E-13 2.858346999437906E-15
tp -4.997713942443646E-13 1.277331614826626E-12 6.116930029250967E-9 1.459029404574726E-11 1.894033294327677E-9 2.26816779314729E-12
node 6.742650823649313E-15 -1.490641488834232E-14 1.459029404574726E-11 5.617454826246298E-9 -5.603724905287636E-9 -5.09891100306126E-11
peri -1.241378081717917E-13 3.301472792961388E-13 1.894033294327677E-9 -5.603724905287636E-9 6.196606744617786E-9 5.161661009435086E-11
i -1.179453495826525E-15 2.858346999437906E-15 2.26816779314729E-12 -5.09891100306126E-11 5.161661009435086E-11 2.065840567848356E-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 16.4   n/a MPO436305  
rotation period rot_per 0.97 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, M.; Trilling, D.E.; et al. (2018) Ap. J. Suppl. Series 237, A19.]
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]

74649 (1999 RF73)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ 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 2020-Sep-28 16:02 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin