ASTROSAT CZTI

Data Quality Report

Orbit 05987

Creation date: 2024-06-27T15:01:30.647029
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1G06_086T01_9000000774_05987cztM0_level2.evt modeM0/AS1G06_086T01_9000000774_05987cztM0_level2_quad_clean.evt
Size (bytes)1,345,705,920243,282,240
Size1.3 GB 232.0 MB
Events in quadrant A17,287,3391,363,134
Events in quadrant B7,024,2451,741,145
Events in quadrant C8,796,4151,646,545
Events in quadrant D6,671,2971,618,845

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A032620
B032424
C032529
D032432

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0262
B0252
C0250
D0251

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07341012377
B0338073022
C0413054671
D0335802877

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A13915485434.883220%
B14603880.602616%
C144812841.961191%
D146341000.683340%

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 18494 14422 4209 4209 22.76% 29.18%
B 18494 15204 6 6 0.03% 0.04%
C 18494 15084 151 151 0.82% 1.00%
D 18494 15175 10 10 0.05% 0.07%

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 15 234 12010032 44343.84 1331 1304 270.8
A 15 236 58349 210.65 1331 1304 270.8
A 13 251 47199 169.47 1331 1304 270.8
B 15 204 225556 722.67 1646 1607 309.9
B 0 219 145325 463.77 1646 1607 309.9
B 0 214 112892 359.11 1646 1607 309.9
C 1 241 2613006 7181.99 1568 1578 363.6
C 9 54 43106 114.21 1568 1578 363.6
C 1 16 16933 42.23 1568 1578 363.6
D 1 239 191985 487.68 1589 1536 390.5
D 2 63 163479 414.69 1589 1536 390.5
D 12 110 97101 244.71 1589 1536 390.5

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