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JPL Small-Body Database Browser
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74176 (1998 RF17)
Classification: Main-belt Asteroid          SPK-ID: 2074176
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1812893824669302 3.9497e-08  
a 2.610268326076728 1.2505e-08 au
q 2.13705439316929 1.041e-07 au
i 2.309402602240193 4.0035e-06 deg
node 282.0003972266771 0.00011943 deg
peri 17.18528854604916 0.00012057 deg
M 79.26990804608582 1.3433e-05 deg
tp 2458661.318613775623
(2019-Jun-26.81861378)
5.826e-05 TDB
period 1540.373920577609
4.22
1.1069e-05
3.031e-08
d
yr
n .2337094878008629 1.6794e-09 deg/d
Q 3.083482258984165 1.4772e-08 au
  Orbit Determination Parameters
   # obs. used (total)      680  
   data-arc span      7762 days (21.25 yr)  
   first obs. used      1998-08-17  
   last obs. used      2019-11-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54978  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 07:24:43  

Additional Information
 Earth MOID = 1.12148 au 
 Jupiter MOID = 2.13314 au 
 T_jup = 3.385 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457078.5 (2015-Feb-25.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1816886858575112 3.9506e-08  
q 2.1361936093191 1.0436e-07 au
tp 2457122.603846804148
(2015-Apr-10.10384680)
6.3009e-05 TDB
node 282.0700043053771 0.00011955 deg
peri 17.52746523170343 0.0001207 deg
i 2.307764779810686 4.0026e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      680  
   data-arc span      7762 days (21.25 yr)  
   first obs. used      1998-08-17  
   last obs. used      2019-11-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54978  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 07:24:43  

Additional Information
 Jupiter MOID = 2.13314 au 
 T_jup = 3.385 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.56073655683224E-15 -4.102444150612415E-15 8.48915843569979E-13 1.441987656653178E-14 1.990381719295481E-13 -8.182894018957512E-16
q -4.102444150612415E-15 1.089120035595361E-14 -2.551242840766623E-12 -3.734673958816526E-14 -6.106719561154555E-13 2.323477924475193E-15
tp 8.48915843569979E-13 -2.551242840766623E-12 3.970123081556322E-9 1.890995437330229E-11 1.074221647245484E-9 -9.563785655300385E-13
node 1.441987656653178E-14 -3.734673958816526E-14 1.890995437330229E-11 1.429296146126907E-8 -1.427538045011504E-8 1.540762084306932E-10
peri 1.990381719295481E-13 -6.106719561154555E-13 1.074221647245484E-9 -1.427538045011504E-8 1.456827705171391E-8 -1.542044685205279E-10
i -8.182894018957512E-16 2.323477924475193E-15 -9.563785655300385E-13 1.540762084306932E-10 -1.542044685205279E-10 1.602050330982481E-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 15.8   n/a MPO436302  
diameter diameter 2.072 km 0.377 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.149   0.074 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74176 (1998 RF17)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2007-Jun-27 22:00 < 00:01 Amphi 0.0225027823933731 0.0225017006528602 0.0225038641437642 4.76658249368821 4.76658244009254 2454279.416366237 0.398315599333791 65.2796540592009 41.4852449104047 -46.8829665345432 68899.9316912643 T 21 CATAB v2.0f-lin.ifort 2019-Dec-14 07:24:47 2019-Dec-14 07:24

Alternate Designations
 1998 RF17 = 2000 AC224 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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