Observation information
- date-obs: 2020-04-02
- time-obs: 02:24:42.782700000
- date-end: 2020-04-02
- time-end: 04:39:15.778400000
- obs_id: A08_008T01_9000003596
- exposure: 4650.68710031
- sourceid: LMC X-1
- observer: vivek
- ra_pnt: 84.91179
- dec_pnt: -69.7432
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A08_008T01_9000003596_24393cztM0_level2.evt
| modeM0/AS1A08_008T01_9000003596_24393cztM0_level2_quad_clean.evt
|
| Size (bytes) | 598,999,680 | 95,613,120 |
| Size | 571.3 MB
| 91.2 MB
|
| Events in quadrant A | 4,194,561 | 605,972 |
| Events in quadrant B | 3,450,410 | 625,710 |
| Events in quadrant C | 4,503,507 | 593,549 |
| Events in quadrant D | 5,502,764 | 566,999 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 146 | 0 |
| B | 0 | 146 | 0 |
| C | 0 | 146 | 0 |
| D | 0 | 146 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17216 | 2 |
| B | 0 | 14856 | 2 |
| C | 0 | 17991 | 2 |
| D | 0 | 21235 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8 | 0 |
| B | 0 | 9 | 0 |
| C | 0 | 9 | 0 |
| D | 0 | 9 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7226 | 270 | 3.736507% |
| B | 7225 | 131 | 1.813149% |
| C | 7225 | 249 | 3.446367% |
| D | 7225 | 533 | 7.377163% |
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 | 7831 | 7227 | 116 | 116 | 1.48% | 1.61% |  |
| B | 7830 | 7226 | 0 | 0 | 0.00% | 0.00% |  |
| C | 7830 | 7226 | 5 | 5 | 0.06% | 0.07% |  |
| D | 7830 | 7226 | 398 | 398 | 5.08% | 5.51% |  |
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 | 6 | 10 | 845447 | 4838.74 | 868 | 850 | 174.5 |
| A | 13 | 254 | 11070 | 58.55 | 868 | 850 | 174.5 |
| A | 3 | 137 | 7626 | 38.82 | 868 | 850 | 174.5 |
| B | 12 | 111 | 20355 | 118.15 | 875 | 854 | 165.1 |
| B | 11 | 111 | 17719 | 102.18 | 875 | 854 | 165.1 |
| B | 15 | 33 | 17529 | 101.03 | 875 | 854 | 165.1 |
| C | 7 | 247 | 1079830 | 5609.84 | 839 | 844 | 192.3 |
| C | 14 | 238 | 133477 | 689.58 | 839 | 844 | 192.3 |
| C | 3 | 233 | 16749 | 82.69 | 839 | 844 | 192.3 |
| D | 1 | 52 | 2097011 | 10541.59 | 832 | 806 | 198.9 |
| D | 12 | 233 | 210446 | 1054.26 | 832 | 806 | 198.9 |
| D | 2 | 234 | 31609 | 154.9 | 832 | 806 | 198.9 |
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 |  |