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7308 Hattori (1995 BQ4)
Classification: Main-belt Asteroid          SPK-ID: 2007308
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04110479265746038 3.5346e-08  
a 3.065264425230362 1.8982e-08 au
q 2.939267366590979 1.0434e-07 au
i 8.131911203567073 3.8646e-06 deg
node 280.8188018892671 4.0895e-05 deg
peri 332.1943445719746 8.4097e-05 deg
M 135.936880002997 7.3857e-05 deg
tp 2458260.323757616319
(2018-May-21.82375762)
0.00040224 TDB
period 1960.199816652041
5.37
1.8208e-05
4.985e-08
d
yr
n .1836547462874824 1.7059e-09 deg/d
Q 3.191261483869746 1.9762e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1878  
   data-arc span      13612 days (37.27 yr)  
   first obs. used      1982-10-21  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5047  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 18:26:13  

Additional Information
 Earth MOID = 1.92676 au 
 Jupiter MOID = 1.88971 au 
 T_jup = 3.216 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456757.5 (2014-Apr-10.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04282383455395099 3.431e-08  
q 2.934820934105324 1.0153e-07 au
tp 2456318.501264687279
(2013-Jan-26.00126469)
0.0003943 TDB
node 281.0142709284498 4.0959e-05 deg
peri 335.5933857327444 8.272e-05 deg
i 8.123604367147038 3.8652e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1878  
   data-arc span      13612 days (37.27 yr)  
   first obs. used      1982-10-21  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5047  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 18:26:13  

Additional Information
 Jupiter MOID = 1.88971 au 
 T_jup = 3.216 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.177182449528038E-15 -3.431103742041014E-15 -2.238959915517953E-12 -3.418685951303694E-15 -4.153016721300522E-13 -4.245158462176269E-17
q -3.431103742041014E-15 1.030834009993906E-14 6.07544737843109E-12 9.424544357242513E-15 1.137959240088051E-12 6.639462883989556E-16
tp -2.238959915517953E-12 6.07544737843109E-12 1.55474666989672E-7 2.017473896780524E-11 2.840117294910083E-8 -4.914830480941261E-12
node -3.418685951303694E-15 9.424544357242513E-15 2.017473896780524E-11 1.677668930329635E-9 -1.657042408477455E-9 3.992040358381682E-11
peri -4.153016721300522E-13 1.137959240088051E-12 2.840117294910083E-8 -1.657042408477455E-9 6.842646681491902E-9 -4.044048390680158E-11
i -4.245158462176269E-17 6.639462883989556E-16 -4.914830480941261E-12 3.992040358381682E-11 -4.044048390680158E-11 1.493969672531644E-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 12.6   n/a MPO332888  
diameter diameter 10.099 km 0.161 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.190   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

7308 Hattori (1995 BQ4)          Discovered 1995-Jan-31 by Shimizu, Y., Urata, T. at Nachi-Katsuura
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ 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
1929-Jul-02 06:43 00:03 Jupiter 1.90374724001684 1.90374677322641 1.90374770680738 3.44962582346075 3.31814265204731 2425794.780169244 2.49537253218921 142.020438926186 19.8306820230317 -88.4679002697936 3668717.47411933 T 32 CATAB v2.0f-lin.ifort 2020-Feb-22 18:26:25 2020-Feb-22 18:26
1988-May-27 17:14 < 00:01 Jupiter 1.90863263465996 1.90863213919455 1.90863313012537 3.24287798420617 3.10301267146501 2447309.218290329 0.789194869351062 57.6821330946733 19.9390121799122 -79.482485141134 3250186.99573008 T 32 CATAB v2.0f-lin.ifort 2020-Feb-22 18:26:25 2020-Feb-22 18:26
2047-Apr-19 08:22 00:01 Jupiter 1.92943017835954 1.92942959464503 1.92943076207416 3.11860079330219 2.97450300771581 2468819.848857030 1.04651188278067 55.3887353734312 16.8012336374105 -69.2141757864142 2906537.15026964 T 32 CATAB v2.0f-lin.ifort 2020-Feb-22 18:26:25 2020-Feb-22 18:26
2096-Jul-08 23:36 00:02 Jupiter 1.95689532313091 1.95689482229086 1.9568958239723 3.9891326875554 3.87911067849426 2486798.483231918 2.34624665467816 133.745299767859 17.8300585937973 84.2000897530872 4328167.69027285 T 32 CATAB v2.0f-lin.ifort 2020-Feb-22 18:26:25 2020-Feb-22 18:26
2106-Mar-10 08:47 00:03 Jupiter 1.96090450473387 1.96090374606006 1.96090526340957 3.14109370094097 3.00042657424166 2490328.865793315 2.8467707483474 133.755695823325 17.275265338203 -79.6166082142178 2699905.19743323 T 32 CATAB v2.0f-lin.ifort 2020-Feb-22 18:26:25 2020-Feb-22 18:26
2155-Jun-12 07:34 00:04 Jupiter 1.91729962704308 1.91729912390029 1.91730013019044 3.81484633425266 3.69722798303634 2508319.815283243 4.04893909095034 238.245229314533 17.2631617088759 87.4458013798436 4194911.31379739 T 32 CATAB v2.0f-lin.ifort 2020-Feb-22 18:26:25 2020-Feb-22 18:26
2165-Jan-29 19:36 00:05 Jupiter 1.99809195851633 1.9980909647576 1.99809295228404 3.33214863021563 3.20240271192295 2511839.316320956 4.58964654069089 255.785254462344 18.6139316572533 -83.6895418573739 2646442.22577057 T 32 CATAB v2.0f-lin.ifort 2020-Feb-22 18:26:25 2020-Feb-22 18:26

Alternate Designations
 1995 BQ4 = 1982 UM8 = 1987 SG30 = 1992 QY1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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