C/2010 G1 (Boattini)
| Parameter |
Value |
| Designation |
C/2010 G1 (Boattini) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2010-04-02T12:57:43.750080Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:41Z |
| Obs used |
282 |
| NEO |
- |
| M1 |
14.100 |
| K1 |
4.500 |
| PC |
0.030 |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2010-04-11.0000000 |
| e |
0.99747618 |
| q (au) |
1.204547 |
| a (au) |
477.271106 |
| i (deg) |
78.387100 |
| Ω (om, deg) |
287.448396 |
| ω (w, deg) |
168.631492 |
| M (ma, deg) |
0.000800 |
Magnitude
Scatter + Global Linear
$$
M_a = (14.620 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
14.620 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-1.000 |
| 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 |
19:05:22.67 |
-53:58:46.5 |
HIP 93684 |
24.98 |
| 2026-02-03 12:00 |
19:05:27.80 |
-53:58:52.9 |
HIP 93684 |
25.07 |
| 2026-02-04 00:00 |
19:05:32.91 |
-53:58:59.5 |
HIP 93684 |
25.17 |
| 2026-02-04 12:00 |
19:05:38.00 |
-53:59:06.3 |
HIP 93684 |
25.30 |
| 2026-02-05 00:00 |
19:05:43.06 |
-53:59:13.3 |
HIP 93684 |
25.44 |
| 2026-02-05 12:00 |
19:05:48.10 |
-53:59:20.5 |
HIP 93684 |
25.60 |
| 2026-02-06 00:00 |
19:05:53.11 |
-53:59:28.0 |
HIP 93684 |
25.78 |
| 2026-02-06 12:00 |
19:05:58.10 |
-53:59:35.6 |
HIP 94051 |
25.56 |
| 2026-02-07 00:00 |
19:06:03.06 |
-53:59:43.5 |
HIP 94051 |
24.82 |
| 2026-02-07 12:00 |
19:06:08.00 |
-53:59:51.5 |
HIP 94051 |
24.08 |
| 2026-02-08 00:00 |
19:06:12.91 |
-53:59:59.8 |
HIP 94051 |
23.35 |
| 2026-02-08 12:00 |
19:06:17.79 |
-54:00:08.3 |
HIP 94051 |
22.62 |
| 2026-02-09 00:00 |
19:06:22.65 |
-54:00:17.0 |
HIP 94051 |
21.90 |
| 2026-02-09 12:00 |
19:06:27.48 |
-54:00:25.9 |
HIP 94051 |
21.18 |
| 2026-02-10 00:00 |
19:06:32.28 |
-54:00:35.0 |
HIP 94051 |
20.46 |
| 2026-02-10 12:00 |
19:06:37.05 |
-54:00:44.3 |
HIP 94051 |
19.75 |
| 2026-02-11 00:00 |
19:06:41.79 |
-54:00:53.9 |
HIP 94051 |
19.04 |
| 2026-02-11 12:00 |
19:06:46.51 |
-54:01:03.6 |
HIP 94051 |
18.34 |
| 2026-02-12 00:00 |
19:06:51.20 |
-54:01:13.5 |
HIP 94051 |
17.64 |
| 2026-02-12 12:00 |
19:06:55.85 |
-54:01:23.7 |
HIP 94051 |
16.95 |
| 2026-02-13 00:00 |
19:07:00.48 |
-54:01:34.0 |
HIP 94051 |
16.26 |
| 2026-02-13 12:00 |
19:07:05.08 |
-54:01:44.6 |
HIP 94051 |
15.58 |
| 2026-02-14 00:00 |
19:07:09.64 |
-54:01:55.3 |
HIP 94051 |
14.90 |
| 2026-02-14 12:00 |
19:07:14.18 |
-54:02:06.3 |
HIP 94051 |
14.23 |
| 2026-02-15 00:00 |
19:07:18.68 |
-54:02:17.4 |
HIP 94051 |
13.57 |
| 2026-02-15 12:00 |
19:07:23.16 |
-54:02:28.8 |
HIP 94051 |
12.92 |
| 2026-02-16 00:00 |
19:07:27.60 |
-54:02:40.3 |
HIP 94051 |
12.27 |
| 2026-02-16 12:00 |
19:07:32.01 |
-54:02:52.1 |
HIP 94051 |
11.63 |
| 2026-02-17 00:00 |
19:07:36.38 |
-54:03:04.1 |
HIP 94051 |
11.00 |
| 2026-02-17 12:00 |
19:07:40.73 |
-54:03:16.2 |
HIP 94051 |
10.38 |
| 2026-02-18 00:00 |
19:07:45.04 |
-54:03:28.6 |
HIP 94051 |
9.77 |
| 2026-02-18 12:00 |
19:07:49.31 |
-54:03:41.1 |
HIP 94051 |
9.18 |
| 2026-02-19 00:00 |
19:07:53.55 |
-54:03:53.9 |
HIP 94051 |
8.60 |
| 2026-02-19 12:00 |
19:07:57.76 |
-54:04:06.8 |
HIP 94051 |
8.04 |
| 2026-02-20 00:00 |
19:08:01.94 |
-54:04:19.9 |
HIP 94051 |
7.50 |
| 2026-02-20 12:00 |
19:08:06.08 |
-54:04:33.2 |
HIP 94051 |
6.99 |
| 2026-02-21 00:00 |
19:08:10.18 |
-54:04:46.8 |
HIP 94051 |
6.51 |
| 2026-02-21 12:00 |
19:08:14.25 |
-54:05:00.5 |
HIP 94051 |
6.06 |
| 2026-02-22 00:00 |
19:08:18.28 |
-54:05:14.3 |
HIP 94051 |
5.65 |
| 2026-02-22 12:00 |
19:08:22.28 |
-54:05:28.4 |
HIP 94051 |
5.30 |
| 2026-02-23 00:00 |
19:08:26.24 |
-54:05:42.7 |
HIP 94051 |
5.01 |
| 2026-02-23 12:00 |
19:08:30.16 |
-54:05:57.1 |
HIP 94051 |
4.79 |
| 2026-02-24 00:00 |
19:08:34.05 |
-54:06:11.8 |
HIP 94051 |
4.65 |