ASTROSAT CZTI

Data Quality Report

Orbit 30391

Creation date: 2024-06-27T20:14:36.982726
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/AS1T04_006T01_9000004370_30391cztM0_level2.evt modeM0/AS1T04_006T01_9000004370_30391cztM0_level2_quad_clean.evt
Size (bytes)1,045,307,520184,662,720
Size996.9 MB 176.1 MB
Events in quadrant A6,385,3391,187,886
Events in quadrant B10,254,8161,196,517
Events in quadrant C6,819,2481,162,570
Events in quadrant D7,303,7461,130,972

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0274914
B0400884
C0280984
D0302794

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02700
B02700
C02700
D02700

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A132303192.411187%
B132304793.620559%
C132304493.393802%
D132303262.464097%

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 13615 13230 3 3 0.02% 0.02%
B 13615 13230 1 1 0.01% 0.01%
C 13615 13230 4 4 0.03% 0.03%
D 13615 13231 65 65 0.48% 0.49%

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 8 192 35462 102.35 1636 1599 330.8
A 12 96 30894 88.55 1636 1599 330.8
A 13 254 25873 73.37 1636 1599 330.8
B 6 159 3738744 11956.21 1617 1572 312.6
B 0 229 102014 321.34 1617 1572 312.6
B 12 111 39019 119.8 1617 1572 312.6
C 3 233 334687 889.58 1586 1596 374.4
C 14 238 255882 679.12 1586 1596 374.4
C 2 114 31129 78.87 1586 1596 374.4
D 13 104 503060 1281.76 1592 1552 391.3
D 8 195 498538 1270.2 1592 1552 391.3
D 2 250 76326 191.11 1592 1552 391.3

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