ASTROSAT CZTI

Data Quality Report

Orbit 06025

Creation date: 2024-06-27T15:01:54.415811
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/AS1A02_006T01_9000000776_06025cztM0_level2.evt modeM0/AS1A02_006T01_9000000776_06025cztM0_level2_quad_clean.evt
Size (bytes)314,228,16068,408,640
Size299.7 MB 65.2 MB
Events in quadrant A2,594,003406,961
Events in quadrant B2,322,489421,533
Events in quadrant C2,134,560417,374
Events in quadrant D2,150,805502,693

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A041
B040
C051
D052

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015456
B015462
C015262
D015063

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0178567277
B0171187343
C0159656326
D0161296288

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A45152164.784053%
B44862275.060187%
C46081874.058160%
D46601603.433476%

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 7767 5743 0 0 0.00% 0.00%
B 7767 5704 8 8 0.10% 0.14%
C 7767 5814 0 0 0.00% 0.00%
D 7767 5846 0 0 0.00% 0.00%

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 13 34 515415 4561.33 538 524 112.9
A 0 226 5238 41.76 538 524 112.9
A 12 194 5137 40.87 538 524 112.9
B 3 64 100606 930.06 541 526 107.6
B 15 204 83394 770.1 541 526 107.6
B 4 172 12343 109.82 541 526 107.6
C 9 16 4857 33.98 541 544 126.9
C 8 128 4740 33.06 541 544 126.9
C 13 61 4290 29.52 541 544 126.9
D 2 63 40107 293.67 544 526 134.8
D 14 34 27812 202.45 544 526 134.8
D 8 195 21390 154.8 544 526 134.8

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