Observation information
- date-obs: 2025-07-18
- time-obs: 16:14:31.336600000
- date-end: 2025-07-18
- time-end: 21:42:43.990900000
- obs_id: C09_011T07_9000006488
- exposure: 7609.0963304
- sourceid: NGC 188
- observer: stalin
- ra_pnt: 12.08
- dec_pnt: 85.15722
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1C09_011T07_9000006488_53043cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006488_53043cztM0_level2_quad_clean.evt
|
| Size (bytes) | 2,203,217,280 | 213,926,400 |
| Size | 2.1 GB
| 204.0 MB
|
| Events in quadrant A | 35,678,153 | 693,809 |
| Events in quadrant B | 9,944,854 | 1,714,532 |
| Events in quadrant C | 14,385,705 | 1,526,738 |
| Events in quadrant D | 20,143,553 | 1,285,548 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 368 | 0 |
| B | 0 | 368 | 0 |
| C | 0 | 368 | 0 |
| D | 0 | 368 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15 | 0 |
| B | 0 | 15 | 0 |
| C | 0 | 15 | 0 |
| D | 0 | 15 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 118404 | 3 |
| B | 0 | 42590 | 1 |
| C | 0 | 55594 | 5 |
| D | 0 | 72712 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 18212 | 11497 | 63.128706% |
| B | 18213 | 430 | 2.360951% |
| C | 18211 | 1266 | 6.951842% |
| D | 18213 | 3264 | 17.921265% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
| Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
| A | 19691 | 18211 | 11251 | 11251 | 57.14% | 61.78% |  |
| B | 19692 | 18213 | 299 | 299 | 1.52% | 1.64% |  |
| C | 19692 | 18213 | 1125 | 1125 | 5.71% | 6.18% |  |
| D | 19692 | 18213 | 3129 | 3129 | 15.89% | 17.18% |  |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
| Pixel properties |
Quadrant properties |
| Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
| A | 9 | 191 | 23798093 | 75715.68 | 1253 | 1223 | 314.3 |
| A | 7 | 206 | 4581594 | 14573.59 | 1253 | 1223 | 314.3 |
| A | 0 | 8 | 971045 | 3085.73 | 1253 | 1223 | 314.3 |
| B | 4 | 81 | 613243 | 1552.65 | 1861 | 1796 | 393.8 |
| B | 10 | 44 | 536303 | 1357.28 | 1861 | 1796 | 393.8 |
| B | 10 | 63 | 357983 | 904.47 | 1861 | 1796 | 393.8 |
| C | 15 | 224 | 2683640 | 5448.06 | 1797 | 1779 | 492.3 |
| C | 7 | 80 | 1189004 | 2411.78 | 1797 | 1779 | 492.3 |
| C | 15 | 147 | 818625 | 1659.38 | 1797 | 1779 | 492.3 |
| D | 8 | 176 | 4073019 | 8168.33 | 1723 | 1641 | 498.4 |
| D | 12 | 17 | 3121882 | 6260.08 | 1723 | 1641 | 498.4 |
| D | 2 | 172 | 2334851 | 4681.08 | 1723 | 1641 | 498.4 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
| Quadrant A |
 |
 |
Quadrant B |
| Quadrant D |
 |
 |
Quadrant C |
Count rate plots and images
| Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
 |
 |
Quadrant-wise count rates
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
 |
 |
Housekeeping plots
| Parameter |
Plot |
| CZT HV Monitor |  |
| D_VDD |  |
| Temperature 1 |  |
| Veto HV Monitor |  |
| Veto LLD |  |
| Alpha Counter |  |
| _CPM_Rate |  |
| CZT Counter |  |
| +2.5 Volts monitor |  |
| +5 Volts monitor |  |
| _ROLL_ROT |  |
| _Roll_DEC |  |
| _Roll_RA |  |
| Veto Counter |  |