Observation information
- date-obs: 2022-03-02
- time-obs: 03:10:25.621900000
- date-end: 2022-03-02
- time-end: 05:23:49.621200000
- obs_id: A10_048T04_9000004984
- exposure: 2649.35061048
- sourceid: NGC 4984
- observer: chayan
- ra_pnt: 197.2383
- dec_pnt: -15.51631
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A10_048T04_9000004984_34741cztM0_level2.evt
| modeM0/AS1A10_048T04_9000004984_34741cztM0_level2_quad_clean.evt
|
| Size (bytes) | 490,443,840 | 66,142,080 |
| Size | 467.7 MB
| 63.1 MB
|
| Events in quadrant A | 3,164,585 | 416,602 |
| Events in quadrant B | 4,570,843 | 424,268 |
| Events in quadrant C | 2,887,046 | 421,346 |
| Events in quadrant D | 3,896,064 | 394,095 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 100 | 0 |
| B | 0 | 100 | 0 |
| C | 0 | 100 | 0 |
| D | 0 | 100 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12614 | 3 |
| B | 0 | 16748 | 2 |
| C | 0 | 11309 | 2 |
| D | 0 | 15060 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 31 | 0 |
| B | 0 | 31 | 0 |
| C | 0 | 31 | 0 |
| D | 0 | 32 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 4942 | 33 | 0.667746% |
| B | 4942 | 766 | 15.499798% |
| C | 4942 | 47 | 0.951032% |
| D | 4942 | 92 | 1.861594% |
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 | 7064 | 4943 | 33 | 33 | 0.47% | 0.67% |  |
| B | 7064 | 4943 | 552 | 552 | 7.81% | 11.17% |  |
| C | 7064 | 4943 | 32 | 32 | 0.45% | 0.65% |  |
| D | 7064 | 4943 | 69 | 69 | 0.98% | 1.40% |  |
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 | 15 | 169 | 391729 | 3037.13 | 649 | 639 | 128.8 |
| A | 15 | 223 | 158117 | 1222.94 | 649 | 639 | 128.8 |
| A | 10 | 83 | 47407 | 363.19 | 649 | 639 | 128.8 |
| B | 4 | 171 | 1659623 | 14429.29 | 611 | 597 | 115.0 |
| B | 5 | 172 | 171097 | 1482.91 | 611 | 597 | 115.0 |
| B | 0 | 190 | 165645 | 1435.5 | 611 | 597 | 115.0 |
| C | 15 | 214 | 210201 | 1415.72 | 639 | 646 | 148.0 |
| C | 0 | 10 | 139484 | 937.97 | 639 | 646 | 148.0 |
| C | 14 | 67 | 21529 | 141.08 | 639 | 646 | 148.0 |
| D | 8 | 195 | 766906 | 4954.45 | 636 | 620 | 154.7 |
| D | 1 | 52 | 222014 | 1431.43 | 636 | 620 | 154.7 |
| D | 2 | 249 | 143509 | 923.85 | 636 | 620 | 154.7 |
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 |  |