| Parameter |
Value |
| Designation |
C/2002 V2 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2003-05-13T16:33:06.503040Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:22Z |
| Obs used |
317 |
| NEO |
- |
| M1 |
11.300 |
| K1 |
4.500 |
| PC |
- |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2003-08-14.0000000 |
| e |
0.99864267 |
| q (au) |
6.812027 |
| a (au) |
5018.714542 |
| i (deg) |
166.776236 |
| Ω (om, deg) |
20.234100 |
| ω (w, deg) |
314.679306 |
| M (ma, deg) |
0.000256 |
Magnitude
Scatter + Global Linear
$$
M_a = (14.074 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
14.074 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-0.744 |
| k |
0.800 |
| δ90 |
9.898 |
| Parameter |
Symbol |
Range |
Description |
| Absolute magnitude at 1 AU from Sun and Earth |
H0 |
-5 to 20 |
Intrinsic brightness of the comet |
| Photometric slope parameter |
n |
2 to 6 |
Rate of brightness change with heliocentric distance |
| Forward scattering asymmetry factor |
gf |
0.8 to 1 |
Degree of forward scattering |
| Backward scattering asymmetry factor |
gb |
-1 to -0.5 |
Degree of backward scattering |
| Partitioning coefficient |
k |
0.8 to 1 |
Ratio between forward/backward scattering contributions |
| Dust-to-gas brightness ratio |
δ90 |
1 to 10 |
Relative contribution of dust scattering to gas emission |
Reference: EPSC-DPS2025-160
Ephemeris
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-03-26 00:00 |
19:42:26.00 |
-08:04:26.6 |
HIP 97016 |
16.76 |
| 2026-03-26 12:00 |
19:42:26.70 |
-08:04:15.1 |
HIP 97016 |
16.83 |
| 2026-03-27 00:00 |
19:42:27.37 |
-08:04:03.6 |
HIP 97016 |
16.90 |
| 2026-03-27 12:00 |
19:42:28.01 |
-08:03:52.2 |
HIP 97016 |
16.98 |
| 2026-03-28 00:00 |
19:42:28.63 |
-08:03:40.8 |
HIP 97016 |
17.06 |
| 2026-03-28 12:00 |
19:42:29.23 |
-08:03:29.4 |
HIP 97016 |
17.16 |
| 2026-03-29 00:00 |
19:42:29.80 |
-08:03:18.1 |
HIP 97016 |
17.25 |
| 2026-03-29 12:00 |
19:42:30.35 |
-08:03:06.8 |
HIP 97016 |
17.35 |
| 2026-03-30 00:00 |
19:42:30.87 |
-08:02:55.6 |
HIP 97016 |
17.46 |
| 2026-03-30 12:00 |
19:42:31.37 |
-08:02:44.3 |
HIP 97016 |
17.57 |
| 2026-03-31 00:00 |
19:42:31.84 |
-08:02:33.2 |
HIP 97016 |
17.68 |
| 2026-03-31 12:00 |
19:42:32.29 |
-08:02:22.0 |
HIP 97016 |
17.80 |
| 2026-04-01 00:00 |
19:42:32.72 |
-08:02:10.9 |
HIP 97016 |
17.93 |
| 2026-04-01 12:00 |
19:42:33.12 |
-08:01:59.8 |
HIP 97016 |
18.05 |
| 2026-04-02 00:00 |
19:42:33.49 |
-08:01:48.8 |
HIP 97016 |
18.18 |
| 2026-04-02 12:00 |
19:42:33.85 |
-08:01:37.8 |
HIP 97016 |
18.31 |
| 2026-04-03 00:00 |
19:42:34.17 |
-08:01:26.9 |
HIP 97016 |
18.45 |
| 2026-04-03 12:00 |
19:42:34.47 |
-08:01:16.0 |
HIP 97016 |
18.59 |
| 2026-04-04 00:00 |
19:42:34.75 |
-08:01:05.1 |
HIP 97016 |
18.73 |
| 2026-04-04 12:00 |
19:42:35.00 |
-08:00:54.3 |
HIP 97016 |
18.87 |
| 2026-04-05 00:00 |
19:42:35.23 |
-08:00:43.5 |
HIP 97016 |
19.02 |
| 2026-04-05 12:00 |
19:42:35.43 |
-08:00:32.8 |
HIP 97016 |
19.17 |
| 2026-04-06 00:00 |
19:42:35.61 |
-08:00:22.1 |
HIP 97016 |
19.32 |
| 2026-04-06 12:00 |
19:42:35.76 |
-08:00:11.5 |
HIP 97016 |
19.47 |
| 2026-04-07 00:00 |
19:42:35.89 |
-08:00:00.9 |
HIP 97016 |
19.63 |
| 2026-04-07 12:00 |
19:42:35.99 |
-07:59:50.4 |
HIP 97016 |
19.78 |
| 2026-04-08 00:00 |
19:42:36.07 |
-07:59:39.9 |
HIP 97016 |
19.94 |
| 2026-04-08 12:00 |
19:42:36.12 |
-07:59:29.5 |
HIP 97016 |
20.10 |
| 2026-04-09 00:00 |
19:42:36.15 |
-07:59:19.1 |
HIP 97016 |
20.26 |
| 2026-04-09 12:00 |
19:42:36.15 |
-07:59:08.8 |
HIP 97016 |
20.42 |
| 2026-04-10 00:00 |
19:42:36.12 |
-07:58:58.5 |
HIP 97016 |
20.59 |
| 2026-04-10 12:00 |
19:42:36.07 |
-07:58:48.3 |
HIP 97016 |
20.75 |
| 2026-04-11 00:00 |
19:42:36.00 |
-07:58:38.1 |
HIP 97016 |
20.92 |
| 2026-04-11 12:00 |
19:42:35.90 |
-07:58:28.0 |
HIP 97016 |
21.09 |
| 2026-04-12 00:00 |
19:42:35.77 |
-07:58:17.9 |
HIP 97016 |
21.26 |
| 2026-04-12 12:00 |
19:42:35.62 |
-07:58:07.9 |
HIP 97016 |
21.43 |
| 2026-04-13 00:00 |
19:42:35.44 |
-07:57:58.0 |
HIP 97016 |
21.60 |
| 2026-04-13 12:00 |
19:42:35.24 |
-07:57:48.1 |
HIP 97016 |
21.77 |
| 2026-04-14 00:00 |
19:42:35.01 |
-07:57:38.3 |
HIP 97016 |
21.94 |
| 2026-04-14 12:00 |
19:42:34.76 |
-07:57:28.5 |
HIP 97016 |
22.12 |
| 2026-04-15 00:00 |
19:42:34.48 |
-07:57:18.8 |
HIP 97016 |
22.29 |
| 2026-04-15 12:00 |
19:42:34.18 |
-07:57:09.2 |
HIP 97016 |
22.47 |
| 2026-04-16 00:00 |
19:42:33.85 |
-07:56:59.6 |
HIP 97016 |
22.64 |