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74307 (1998 TO30)
Classification: Main-belt Asteroid          SPK-ID: 2074307
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1674413532782131 3.8757e-08  
a 2.630475784612307 1.2364e-08 au
q 2.190025359471253 1.0639e-07 au
i 3.807816765890443 5.5849e-06 deg
node 207.0424673247388 6.1317e-05 deg
peri 222.7737603243661 6.3769e-05 deg
M 357.7194068356183 1.7532e-05 deg
tp 2459010.371774053846
(2020-Jun-09.87177405)
7.5915e-05 TDB
period 1558.295760457614
4.27
1.0987e-05
3.008e-08
d
yr
n .2310216129281397 1.6288e-09 deg/d
Q 3.070926209753361 1.4434e-08 au
  Orbit Determination Parameters
   # obs. used (total)      916  
   data-arc span      7755 days (21.23 yr)  
   first obs. used      1998-10-10  
   last obs. used      2020-01-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55399  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 11:47:27  

Additional Information
 Earth MOID = 1.20604 au 
 Jupiter MOID = 2.226 au 
 T_jup = 3.377 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456948.5 (2014-Oct-18.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1655274327871047 3.8623e-08  
q 2.19623447646631 1.0593e-07 au
tp 2457447.848067639238
(2016-Feb-29.34806764)
7.3805e-05 TDB
node 207.0832854908401 6.1308e-05 deg
peri 222.056993916112 6.3848e-05 deg
i 3.804471400489287 5.5907e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      916  
   data-arc span      7755 days (21.23 yr)  
   first obs. used      1998-10-10  
   last obs. used      2020-01-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55399  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 11:47:27  

Additional Information
 Jupiter MOID = 2.226 au 
 T_jup = 3.377 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.491724932888245E-15 -4.074440053822052E-15 -1.088726422190821E-12 1.110590820781367E-14 -2.328845780158429E-13 -1.125542724624207E-15
q -4.074440053822052E-15 1.122069825118319E-14 3.077963620410976E-12 -3.058204581573078E-14 6.538369113542832E-13 3.152807283372298E-15
tp -1.088726422190821E-12 3.077963620410976E-12 5.447127523406378E-9 -1.612539453561881E-11 1.327758099592681E-9 2.23252771620875E-12
node 1.110590820781367E-14 -3.058204581573078E-14 -1.612539453561881E-11 3.758716870159799E-9 -3.753627261908073E-9 -1.105176275797566E-10
peri -2.328845780158429E-13 6.538369113542832E-13 1.327758099592681E-9 -3.753627261908073E-9 4.076600811714638E-9 1.107605554062942E-10
i -1.125542724624207E-15 3.152807283372298E-15 2.23252771620875E-12 -1.105176275797566E-10 1.107605554062942E-10 3.125597890142225E-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 15.1   n/a MPO351367  

74307 (1998 TO30)          Discovered 1998-Oct-10 by LONEOS at Anderson Mesa
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
2065-Aug-04 18:19 00:07 Cybel 0.0220547570691252 0.022048935734335 0.0220605784862951 2.73158602689138 2.73158592591988 2475502.263279072 6.79899732515855 297.956695028631 52.798252052779 -13.4810618029466 18095.1682882358 T 18 CATAB v2.0f-lin.ifort 2020-Jan-29 11:47:57 2020-Jan-29 11:48
2103-Oct-19 21:41 00:07 Psych 0.0264423648869863 0.0264308411861267 0.0264538911684911 2.16775747522624 2.16775726414862 2489456.403334056 6.52345084377 706.608988739247 58.1161984502499 -35.9207468404679 40064.478204766 T 18 CATAB v2.0f-lin.ifort 2020-Jan-29 11:47:57 2020-Jan-29 11:48

Alternate Designations
 1998 TO30 = 2000 EB59 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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