| Parameter |
Value |
| Designation |
C/2010 F3 (Scotti) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2010-08-04T12:52:37.418880Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:41Z |
| Obs used |
135 |
| NEO |
- |
| M1 |
13.200 |
| K1 |
4.500 |
| PC |
- |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2010-07-07.0000000 |
| e |
0.91326388 |
| q (au) |
5.446686 |
| a (au) |
62.796057 |
| i (deg) |
4.647569 |
| Ω (om, deg) |
157.410153 |
| ω (w, deg) |
31.256514 |
| M (ma, deg) |
359.943479 |
Magnitude
Scatter + Global Linear
$$
M_a = (11.833 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
11.833 |
| n |
2.000 |
| gf |
0.958 |
| gb |
-0.983 |
| k |
1.000 |
| δ90 |
9.614 |
| 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) |
| 2026-06-01 00:00 |
21:46:52.99 |
-12:08:04.2 |
HIP 107632 |
17.40 |
| 2026-06-01 12:00 |
21:46:52.37 |
-12:08:06.7 |
HIP 107632 |
17.56 |
| 2026-06-02 00:00 |
21:46:51.71 |
-12:08:09.4 |
HIP 107632 |
17.71 |
| 2026-06-02 12:00 |
21:46:51.03 |
-12:08:12.2 |
HIP 107632 |
17.88 |
| 2026-06-03 00:00 |
21:46:50.31 |
-12:08:15.2 |
HIP 107632 |
18.05 |
| 2026-06-03 12:00 |
21:46:49.56 |
-12:08:18.4 |
HIP 107632 |
18.24 |
| 2026-06-04 00:00 |
21:46:48.77 |
-12:08:21.8 |
HIP 107632 |
18.43 |
| 2026-06-04 12:00 |
21:46:47.96 |
-12:08:25.3 |
HIP 107632 |
18.63 |
| 2026-06-05 00:00 |
21:46:47.11 |
-12:08:29.0 |
HIP 107632 |
18.83 |
| 2026-06-05 12:00 |
21:46:46.23 |
-12:08:32.9 |
HIP 107632 |
19.05 |
| 2026-06-06 00:00 |
21:46:45.32 |
-12:08:36.9 |
HIP 107632 |
19.27 |
| 2026-06-06 12:00 |
21:46:44.38 |
-12:08:41.1 |
HIP 107632 |
19.50 |
| 2026-06-07 00:00 |
21:46:43.40 |
-12:08:45.5 |
HIP 107632 |
19.74 |
| 2026-06-07 12:00 |
21:46:42.39 |
-12:08:50.0 |
HIP 107632 |
19.98 |
| 2026-06-08 00:00 |
21:46:41.36 |
-12:08:54.7 |
HIP 107632 |
20.24 |
| 2026-06-08 12:00 |
21:46:40.29 |
-12:08:59.6 |
HIP 107632 |
20.50 |
| 2026-06-09 00:00 |
21:46:39.18 |
-12:09:04.7 |
HIP 107632 |
20.77 |
| 2026-06-09 12:00 |
21:46:38.05 |
-12:09:09.9 |
HIP 107632 |
21.05 |
| 2026-06-10 00:00 |
21:46:36.89 |
-12:09:15.2 |
HIP 107632 |
21.34 |
| 2026-06-10 12:00 |
21:46:35.69 |
-12:09:20.8 |
HIP 107632 |
21.63 |
| 2026-06-11 00:00 |
21:46:34.46 |
-12:09:26.5 |
HIP 107632 |
21.93 |
| 2026-06-11 12:00 |
21:46:33.21 |
-12:09:32.3 |
HIP 107632 |
22.25 |
| 2026-06-12 00:00 |
21:46:31.92 |
-12:09:38.4 |
HIP 107632 |
22.56 |
| 2026-06-12 12:00 |
21:46:30.60 |
-12:09:44.6 |
HIP 107632 |
22.89 |
| 2026-06-13 00:00 |
21:46:29.25 |
-12:09:50.9 |
HIP 107632 |
23.23 |
| 2026-06-13 12:00 |
21:46:27.87 |
-12:09:57.5 |
HIP 107632 |
23.57 |
| 2026-06-14 00:00 |
21:46:26.45 |
-12:10:04.1 |
HIP 107632 |
23.92 |
| 2026-06-14 12:00 |
21:46:25.01 |
-12:10:11.0 |
HIP 107632 |
24.28 |
| 2026-06-15 00:00 |
21:46:23.54 |
-12:10:18.0 |
HIP 107632 |
24.64 |
| 2026-06-15 12:00 |
21:46:22.04 |
-12:10:25.2 |
HIP 107632 |
25.02 |
| 2026-06-16 00:00 |
21:46:20.50 |
-12:10:32.5 |
HIP 107491 |
25.38 |
| 2026-06-16 12:00 |
21:46:18.94 |
-12:10:40.0 |
HIP 107491 |
25.25 |
| 2026-06-17 00:00 |
21:46:17.35 |
-12:10:47.6 |
HIP 107491 |
25.12 |
| 2026-06-17 12:00 |
21:46:15.73 |
-12:10:55.4 |
HIP 107491 |
25.00 |
| 2026-06-18 00:00 |
21:46:14.07 |
-12:11:03.4 |
HIP 107491 |
24.88 |
| 2026-06-18 12:00 |
21:46:12.39 |
-12:11:11.5 |
HIP 107491 |
24.76 |
| 2026-06-19 00:00 |
21:46:10.68 |
-12:11:19.8 |
HIP 107491 |
24.65 |
| 2026-06-19 12:00 |
21:46:08.95 |
-12:11:28.2 |
HIP 107491 |
24.55 |
| 2026-06-20 00:00 |
21:46:07.18 |
-12:11:36.8 |
HIP 107491 |
24.45 |
| 2026-06-20 12:00 |
21:46:05.38 |
-12:11:45.6 |
HIP 107491 |
24.35 |
| 2026-06-21 00:00 |
21:46:03.56 |
-12:11:54.4 |
HIP 107491 |
24.27 |
| 2026-06-21 12:00 |
21:46:01.70 |
-12:12:03.5 |
HIP 107491 |
24.19 |
| 2026-06-22 00:00 |
21:45:59.82 |
-12:12:12.7 |
HIP 107491 |
24.12 |