ASTROSAT CZTI

Data Quality Report

Orbit 32759

Creation date: 2024-06-27T20:41:41.596592
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/AS1A10_057T04_9000004728_32759cztM0_level2.evt modeM0/AS1A10_057T04_9000004728_32759cztM0_level2_quad_clean.evt
Size (bytes)456,814,08060,281,280
Size435.7 MB 57.5 MB
Events in quadrant A2,572,902379,136
Events in quadrant B2,627,895380,496
Events in quadrant C2,310,381376,365
Events in quadrant D5,994,734348,958

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0105511
B0106870
C099700
D0212680

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0960
B0960
C0960
D0960

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A485770.144122%
B4857531.091209%
C4857120.247066%
D485756411.612106%

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 6980 4858 0 0 0.00% 0.00%
B 6980 4858 37 37 0.53% 0.76%
C 6980 4858 8 8 0.11% 0.16%
D 6980 4858 510 510 7.31% 10.50%

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 12 16 218465 1824.18 593 584 119.4
A 12 194 38393 316.55 593 584 119.4
A 13 6 9082 71.15 593 584 119.4
B 12 1 139918 1255.25 588 577 111.0
B 3 32 62204 555.16 588 577 111.0
B 0 197 33291 294.7 588 577 111.0
C 0 10 54554 411.98 567 572 131.0
C 15 127 17399 128.42 567 572 131.0
C 14 67 7545 53.22 567 572 131.0
D 8 195 2706161 19836.53 545 534 136.4
D 2 250 684664 5015.76 545 534 136.4
D 12 17 219480 1605.22 545 534 136.4

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