ASTROSAT CZTI

Data Quality Report

Orbit 42562

Creation date: 2024-06-27T22:41:39.425587
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/AS1C07_001T10_9000005814_42562cztM0_level2.fits modeM0/AS1C07_001T10_9000005814_42562cztM0_level2_quad_clean.evt
Size (bytes)273,879,36084,885,120
Size261.2 MB 81.0 MB
Events in quadrant A2,749,669577,676
Events in quadrant B2,199,492586,885
Events in quadrant C2,264,337551,569
Events in quadrant D2,546,793514,908

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0109202
B098922
C097632
D0109184

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0230
C0230
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0980
B0980
C0980
D0980

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4839130.268651%
B4839140.289316%
C483930.061996%
D4838320.661430%

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 6992 4840 12 12 0.17% 0.25%
B 6992 4840 8 8 0.11% 0.17%
C 6992 4840 0 0 0.00% 0.00%
D 6991 4839 23 23 0.33% 0.48%

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 10 83 538069 4860.92 544 533 110.6
A 15 223 56208 503.47 544 533 110.6
A 7 3 30087 267.26 544 533 110.6
B 5 172 53468 518.59 535 520 102.1
B 5 255 27943 268.59 535 520 102.1
B 12 111 12203 114.43 535 520 102.1
C 15 214 206005 1716.37 519 522 119.7
C 14 254 14679 118.25 519 522 119.7
C 12 249 8343 65.33 519 522 119.7
D 1 52 254545 1998.43 525 510 127.1
D 1 47 78577 614.13 525 510 127.1
D 5 171 53289 415.2 525 510 127.1

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