C/1960 Y1 (Candy)
| Parameter |
Value |
| Designation |
C/1960 Y1 (Candy) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1961-02-10T23:12:09.239040Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:14Z |
| Obs used |
8 |
| NEO |
Yes |
| M1 |
- |
| K1 |
- |
| PC |
0.030 |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
1961-01-09.0000000 |
| e |
0.93033662 |
| q (au) |
1.046719 |
| a (au) |
15.025379 |
| i (deg) |
151.174695 |
| Ω (om, deg) |
177.293253 |
| ω (w, deg) |
138.764838 |
| M (ma, deg) |
359.442118 |
Magnitude
Scatter + Global Linear
$$
M_a = (7.452 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
7.452 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.546 |
| 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 |
15:15:36.32 |
-43:40:15.1 |
HIP 74716 |
12.75 |
| 2026-02-03 12:00 |
15:15:36.77 |
-43:41:00.0 |
HIP 74716 |
13.37 |
| 2026-02-04 00:00 |
15:15:37.14 |
-43:41:44.6 |
HIP 74716 |
14.01 |
| 2026-02-04 12:00 |
15:15:37.42 |
-43:42:29.2 |
HIP 74716 |
14.66 |
| 2026-02-05 00:00 |
15:15:37.62 |
-43:43:13.6 |
HIP 74716 |
15.33 |
| 2026-02-05 12:00 |
15:15:37.73 |
-43:43:57.9 |
HIP 74716 |
16.00 |
| 2026-02-06 00:00 |
15:15:37.77 |
-43:44:42.0 |
HIP 74716 |
16.69 |
| 2026-02-06 12:00 |
15:15:37.71 |
-43:45:25.9 |
HIP 74716 |
17.38 |
| 2026-02-07 00:00 |
15:15:37.58 |
-43:46:09.7 |
HIP 74716 |
18.07 |
| 2026-02-07 12:00 |
15:15:37.36 |
-43:46:53.4 |
HIP 74716 |
18.77 |
| 2026-02-08 00:00 |
15:15:37.06 |
-43:47:36.8 |
HIP 74583 |
18.56 |
| 2026-02-08 12:00 |
15:15:36.67 |
-43:48:20.1 |
HIP 74583 |
18.03 |
| 2026-02-09 00:00 |
15:15:36.19 |
-43:49:03.2 |
HIP 74583 |
17.51 |
| 2026-02-09 12:00 |
15:15:35.64 |
-43:49:46.2 |
HIP 74583 |
17.00 |
| 2026-02-10 00:00 |
15:15:34.99 |
-43:50:28.9 |
HIP 74583 |
16.48 |
| 2026-02-10 12:00 |
15:15:34.26 |
-43:51:11.5 |
HIP 74583 |
15.98 |
| 2026-02-11 00:00 |
15:15:33.45 |
-43:51:53.9 |
HIP 74583 |
15.48 |
| 2026-02-11 12:00 |
15:15:32.55 |
-43:52:36.0 |
HIP 74583 |
14.98 |
| 2026-02-12 00:00 |
15:15:31.56 |
-43:53:18.0 |
HIP 74583 |
14.49 |
| 2026-02-12 12:00 |
15:15:30.49 |
-43:53:59.8 |
HIP 74583 |
14.01 |
| 2026-02-13 00:00 |
15:15:29.33 |
-43:54:41.3 |
HIP 74583 |
13.54 |
| 2026-02-13 12:00 |
15:15:28.09 |
-43:55:22.7 |
HIP 74583 |
13.08 |
| 2026-02-14 00:00 |
15:15:26.76 |
-43:56:03.8 |
HIP 74583 |
12.62 |
| 2026-02-14 12:00 |
15:15:25.34 |
-43:56:44.7 |
HIP 74583 |
12.19 |
| 2026-02-15 00:00 |
15:15:23.84 |
-43:57:25.4 |
HIP 74657 |
11.57 |
| 2026-02-15 12:00 |
15:15:22.25 |
-43:58:05.9 |
HIP 74657 |
10.88 |
| 2026-02-16 00:00 |
15:15:20.57 |
-43:58:46.1 |
HIP 74657 |
10.20 |
| 2026-02-16 12:00 |
15:15:18.81 |
-43:59:26.1 |
HIP 74657 |
9.53 |
| 2026-02-17 00:00 |
15:15:16.95 |
-44:00:05.9 |
HIP 74657 |
8.88 |
| 2026-02-17 12:00 |
15:15:15.02 |
-44:00:45.4 |
HIP 74657 |
8.25 |
| 2026-02-18 00:00 |
15:15:12.99 |
-44:01:24.6 |
HIP 74657 |
7.65 |
| 2026-02-18 12:00 |
15:15:10.88 |
-44:02:03.6 |
HIP 74657 |
7.08 |
| 2026-02-19 00:00 |
15:15:08.68 |
-44:02:42.4 |
HIP 74657 |
6.56 |
| 2026-02-19 12:00 |
15:15:06.40 |
-44:03:20.9 |
HIP 74657 |
6.10 |
| 2026-02-20 00:00 |
15:15:04.02 |
-44:03:59.1 |
HIP 74657 |
5.72 |
| 2026-02-20 12:00 |
15:15:01.56 |
-44:04:37.1 |
HIP 74657 |
5.43 |
| 2026-02-21 00:00 |
15:14:59.02 |
-44:05:14.7 |
HIP 74657 |
5.25 |
| 2026-02-21 12:00 |
15:14:56.38 |
-44:05:52.1 |
HIP 74657 |
5.20 |
| 2026-02-22 00:00 |
15:14:53.66 |
-44:06:29.3 |
HIP 74657 |
5.28 |
| 2026-02-22 12:00 |
15:14:50.86 |
-44:07:06.1 |
HIP 74657 |
5.49 |
| 2026-02-23 00:00 |
15:14:47.96 |
-44:07:42.6 |
HIP 74657 |
5.82 |
| 2026-02-23 12:00 |
15:14:44.98 |
-44:08:18.9 |
HIP 74657 |
6.25 |
| 2026-02-24 00:00 |
15:14:41.92 |
-44:08:54.9 |
HIP 74657 |
6.77 |