C/2002 VQ94 (LINEAR)
| Parameter |
Value |
| Designation |
C/2002 VQ94 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2006-02-06T20:04:08.872320Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:24Z |
| Obs used |
1292 |
| NEO |
- |
| M1 |
9.300 |
| K1 |
4.500 |
| PC |
- |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2006-09-02.0000000 |
| e |
0.96628664 |
| q (au) |
6.796765 |
| a (au) |
201.604500 |
| i (deg) |
70.516275 |
| Ω (om, deg) |
35.015090 |
| ω (w, deg) |
100.053210 |
| M (ma, deg) |
0.071329 |
Magnitude
Scatter + Global Linear
$$
M_a = (4.352 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
4.352 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.853 |
| k |
0.800 |
| δ90 |
10.000 |
| 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) |
| 2026-02-03 00:00 |
14:23:27.41 |
-63:30:36.9 |
HIP 70168 |
14.23 |
| 2026-02-03 12:00 |
14:23:26.73 |
-63:31:19.9 |
HIP 70459 |
14.15 |
| 2026-02-04 00:00 |
14:23:25.99 |
-63:32:02.7 |
HIP 70459 |
13.65 |
| 2026-02-04 12:00 |
14:23:25.18 |
-63:32:45.5 |
HIP 70459 |
13.18 |
| 2026-02-05 00:00 |
14:23:24.31 |
-63:33:28.1 |
HIP 70459 |
12.74 |
| 2026-02-05 12:00 |
14:23:23.38 |
-63:34:10.6 |
HIP 70459 |
12.33 |
| 2026-02-06 00:00 |
14:23:22.38 |
-63:34:52.9 |
HIP 70459 |
11.95 |
| 2026-02-06 12:00 |
14:23:21.32 |
-63:35:35.1 |
HIP 70459 |
11.62 |
| 2026-02-07 00:00 |
14:23:20.20 |
-63:36:17.2 |
HIP 70459 |
11.33 |
| 2026-02-07 12:00 |
14:23:19.01 |
-63:36:59.2 |
HIP 70459 |
11.08 |
| 2026-02-08 00:00 |
14:23:17.75 |
-63:37:41.0 |
HIP 70459 |
10.88 |
| 2026-02-08 12:00 |
14:23:16.44 |
-63:38:22.6 |
HIP 70459 |
10.74 |
| 2026-02-09 00:00 |
14:23:15.06 |
-63:39:04.1 |
HIP 70459 |
10.64 |
| 2026-02-09 12:00 |
14:23:13.61 |
-63:39:45.5 |
HIP 70459 |
10.60 |
| 2026-02-10 00:00 |
14:23:12.11 |
-63:40:26.7 |
HIP 70459 |
10.62 |
| 2026-02-10 12:00 |
14:23:10.53 |
-63:41:07.8 |
HIP 70459 |
10.68 |
| 2026-02-11 00:00 |
14:23:08.90 |
-63:41:48.7 |
HIP 70459 |
10.80 |
| 2026-02-11 12:00 |
14:23:07.20 |
-63:42:29.4 |
HIP 70459 |
10.98 |
| 2026-02-12 00:00 |
14:23:05.43 |
-63:43:10.0 |
HIP 70459 |
11.20 |
| 2026-02-12 12:00 |
14:23:03.61 |
-63:43:50.4 |
HIP 70459 |
11.46 |
| 2026-02-13 00:00 |
14:23:01.71 |
-63:44:30.6 |
HIP 70459 |
11.77 |
| 2026-02-13 12:00 |
14:22:59.76 |
-63:45:10.6 |
HIP 70459 |
12.12 |
| 2026-02-14 00:00 |
14:22:57.74 |
-63:45:50.5 |
HIP 70459 |
12.50 |
| 2026-02-14 12:00 |
14:22:55.66 |
-63:46:30.2 |
HIP 70459 |
12.92 |
| 2026-02-15 00:00 |
14:22:53.51 |
-63:47:09.7 |
HIP 70459 |
13.36 |
| 2026-02-15 12:00 |
14:22:51.30 |
-63:47:49.0 |
HIP 70459 |
13.83 |
| 2026-02-16 00:00 |
14:22:49.03 |
-63:48:28.2 |
HIP 70459 |
14.33 |
| 2026-02-16 12:00 |
14:22:46.69 |
-63:49:07.1 |
HIP 70459 |
14.84 |
| 2026-02-17 00:00 |
14:22:44.29 |
-63:49:45.8 |
HIP 70459 |
15.38 |
| 2026-02-17 12:00 |
14:22:41.83 |
-63:50:24.4 |
HIP 70459 |
15.93 |
| 2026-02-18 00:00 |
14:22:39.31 |
-63:51:02.7 |
HIP 70459 |
16.49 |
| 2026-02-18 12:00 |
14:22:36.72 |
-63:51:40.9 |
HIP 70459 |
17.07 |
| 2026-02-19 00:00 |
14:22:34.07 |
-63:52:18.8 |
HIP 70459 |
17.66 |
| 2026-02-19 12:00 |
14:22:31.36 |
-63:52:56.5 |
HIP 70459 |
18.27 |
| 2026-02-20 00:00 |
14:22:28.58 |
-63:53:34.0 |
HIP 70459 |
18.88 |
| 2026-02-20 12:00 |
14:22:25.74 |
-63:54:11.3 |
HIP 70459 |
19.50 |
| 2026-02-21 00:00 |
14:22:22.84 |
-63:54:48.4 |
HIP 70459 |
20.13 |
| 2026-02-21 12:00 |
14:22:19.88 |
-63:55:25.3 |
HIP 70459 |
20.77 |
| 2026-02-22 00:00 |
14:22:16.86 |
-63:56:01.9 |
HIP 70213 |
21.20 |
| 2026-02-22 12:00 |
14:22:13.78 |
-63:56:38.3 |
HIP 70213 |
20.56 |
| 2026-02-23 00:00 |
14:22:10.63 |
-63:57:14.5 |
HIP 70213 |
19.92 |
| 2026-02-23 12:00 |
14:22:07.43 |
-63:57:50.4 |
HIP 70213 |
19.30 |
| 2026-02-24 00:00 |
14:22:04.16 |
-63:58:26.1 |
HIP 70213 |
18.68 |