Observation information
- date-obs: 2022-01-16
- time-obs: 15:32:31.998400000
- date-end: 2022-01-18
- time-end: 07:22:30.877700000
- obs_id: A05_208T01_9000004870
- exposure: 43478.7604915
- sourceid: NGC 4939
- observer: KshamaSK
- ra_pnt: 196.0599
- dec_pnt: -10.3396
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A05_208T01_9000004870cztM0_level2.fits
| modeM0/AS1A05_208T01_9000004870cztM0_level2_quad_clean.evt
|
| Size (bytes) | 952,099,200 | 805,265,280 |
| Size | 908.0 MB
| 768.0 MB
|
| Events in quadrant A | 5,968,912 | 4,718,242 |
| Events in quadrant B | 5,520,020 | 4,537,534 |
| Events in quadrant C | 5,754,920 | 4,477,921 |
| Events in quadrant D | 4,791,882 | 3,858,559 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 2022 | 0 |
| B | 0 | 2022 | 0 |
| C | 0 | 2022 | 0 |
| D | 0 | 2022 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 383 | 0 |
| B | 0 | 383 | 0 |
| C | 0 | 383 | 0 |
| D | 0 | 383 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 205539 | 0 |
| B | 0 | 286488 | 0 |
| C | 0 | 244226 | 0 |
| D | 0 | 351189 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 99123 | 753 | 0.759662% |
| B | 99123 | 6493 | 6.550447% |
| C | 99123 | 2193 | 2.212403% |
| D | 99123 | 8101 | 8.172674% |
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 | 143399 | 99114 | 0 | 0 | 0.00% | 0.00% |  |
| B | 143399 | 99037 | 0 | 0 | 0.00% | 0.00% |  |
| C | 143399 | 99090 | 0 | 0 | 0.00% | 0.00% |  |
| D | 143399 | 99044 | 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 | 9 | 19 | 4840 | 8.83 | 1557 | 1458 | 383.1 |
| A | 7 | 110 | 4840 | 8.83 | 1557 | 1458 | 383.1 |
| A | 0 | 29 | 4683 | 8.42 | 1557 | 1458 | 383.1 |
| B | 2 | 9 | 4856 | 12.18 | 1461 | 1395 | 284.1 |
| B | 3 | 80 | 4236 | 10.0 | 1461 | 1395 | 284.1 |
| B | 2 | 8 | 3900 | 8.82 | 1461 | 1395 | 284.1 |
| C | 1 | 81 | 4792 | 8.64 | 1521 | 1430 | 389.2 |
| C | 1 | 80 | 4641 | 8.25 | 1521 | 1430 | 389.2 |
| C | 3 | 203 | 4449 | 7.76 | 1521 | 1430 | 389.2 |
| D | 7 | 3 | 3536 | 6.26 | 1373 | 1250 | 365.3 |
| D | 4 | 160 | 3524 | 6.23 | 1373 | 1250 | 365.3 |
| D | 10 | 189 | 3488 | 6.13 | 1373 | 1250 | 365.3 |
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 |  |