Observation information
- date-obs: 2020-11-24
- time-obs: 20:06:52.170100000
- date-end: 2020-11-26
- time-end: 06:04:40.144600000
- obs_id: A10_048T06_9000004030
- exposure: 53489.4707963
- sourceid: NGC 7755
- observer: chayan
- ra_pnt: 356.9654
- dec_pnt: -30.522
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A10_048T06_9000004030cztM0_level2.fits
| modeM0/AS1A10_048T06_9000004030cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,058,826,240 | 974,384,640 |
| Size | 1009.8 MB
| 929.2 MB
|
| Events in quadrant A | 6,658,994 | 5,944,884 |
| Events in quadrant B | 6,353,652 | 5,925,750 |
| Events in quadrant C | 6,366,146 | 5,570,684 |
| Events in quadrant D | 5,267,244 | 4,651,487 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 227989 | 0 |
| B | 0 | 243139 | 0 |
| C | 0 | 229734 | 0 |
| D | 0 | 378571 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 2196 | 0 |
| B | 0 | 2196 | 0 |
| C | 0 | 2196 | 0 |
| D | 0 | 2196 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 144 | 0 |
| B | 0 | 144 | 0 |
| C | 0 | 144 | 0 |
| D | 0 | 144 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 108223 | 1139 | 1.052457% |
| B | 108223 | 1689 | 1.560666% |
| C | 108223 | 1950 | 1.801835% |
| D | 108223 | 12802 | 11.829278% |
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 | 122269 | 108210 | 0 | 0 | 0.00% | 0.00% |  |
| B | 122269 | 108207 | 0 | 0 | 0.00% | 0.00% |  |
| C | 122269 | 108209 | 0 | 0 | 0.00% | 0.00% |  |
| D | 122268 | 107144 | 0 | 0 | 0.00% | 0.00% |  |
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 | 0 | 29 | 5504 | 9.2 | 1735 | 1630 | 421.1 |
| A | 7 | 110 | 5202 | 8.48 | 1735 | 1630 | 421.1 |
| A | 0 | 30 | 4830 | 7.6 | 1735 | 1630 | 421.1 |
| B | 2 | 9 | 5167 | 11.04 | 1678 | 1604 | 322.8 |
| B | 2 | 8 | 4228 | 8.13 | 1678 | 1604 | 322.8 |
| B | 3 | 17 | 4198 | 8.03 | 1678 | 1604 | 322.8 |
| C | 1 | 80 | 4872 | 7.78 | 1681 | 1571 | 424.4 |
| C | 1 | 81 | 4804 | 7.62 | 1681 | 1571 | 424.4 |
| C | 12 | 241 | 4464 | 6.82 | 1681 | 1571 | 424.4 |
| D | 3 | 14 | 3924 | 6.38 | 1501 | 1366 | 401.2 |
| D | 6 | 67 | 3663 | 5.72 | 1501 | 1366 | 401.2 |
| D | 6 | 231 | 3649 | 5.69 | 1501 | 1366 | 401.2 |
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 |  |