ASTROSAT CZTI

Data Quality Report

Orbit 07261

Creation date: 2024-06-27T15:17:28.111906
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/AS1G05_246T03_9000000990_07261cztM0_level2.evt modeM0/AS1G05_246T03_9000000990_07261cztM0_level2_quad_clean.evt
Size (bytes)277,361,28045,161,280
Size264.5 MB 43.1 MB
Events in quadrant A1,902,168266,609
Events in quadrant B2,090,348270,975
Events in quadrant C1,867,787269,051
Events in quadrant D2,244,397256,328

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A086670
B089840
C086810
D097850

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0860
B0860
C0860
D0860

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A432220.046275%
B4322140.323924%
C432230.069412%
D4322571.318834%

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 4322 4322 0 0 0.00% 0.00%
B 4322 4322 12 12 0.28% 0.28%
C 4322 4322 0 0 0.00% 0.00%
D 4322 4322 50 50 1.16% 1.16%

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 8 15 12763 121.88 484 474 100.8
A 3 1 12099 115.3 484 474 100.8
A 13 14 6797 62.71 484 474 100.8
B 0 214 73002 761.28 489 476 95.3
B 4 239 38395 398.02 489 476 95.3
B 0 228 29422 303.84 489 476 95.3
C 10 22 8333 70.28 474 477 111.8
C 9 68 5710 46.82 474 477 111.8
C 13 61 3852 30.19 474 477 111.8
D 2 14 205171 1752.3 467 452 116.8
D 2 216 200739 1714.36 467 452 116.8
D 2 33 61394 521.64 467 452 116.8

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