ASTROSAT CZTI

Data Quality Report

Orbit 00289

Creation date: 2024-06-27T13:58:45.392859
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/AS1P01_126T02_9000000034_00289cztM0_level2.evt modeM0/AS1P01_126T02_9000000034_00289cztM0_level2_quad_clean.evt
Size (bytes)879,500,16012,709,440
Size838.8 MB 12.1 MB
Events in quadrant A7,440,7912,003
Events in quadrant B6,551,2782,005
Events in quadrant C6,352,4421,938
Events in quadrant D5,935,0261,918

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0258882
B0232401
C0226541
D0214391

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5363120.223755%
B536340.074585%
C536360.111878%
D5363160.298340%

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 7068 5364 335 335 4.74% 6.25%
B 7068 5364 124 124 1.75% 2.31%
C 7068 5364 124 124 1.75% 2.31%
D 7068 5364 71 71 1.00% 1.32%

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 15 127 982073 2668.8 1660 1646 367.4
A 13 50 12863 30.53 1660 1646 367.4
A 13 17 12509 29.57 1660 1646 367.4
B 0 183 66933 168.72 1646 1661 386.9
B 7 220 66225 166.89 1646 1661 386.9
B 0 85 38427 95.04 1646 1661 386.9
C 5 234 317663 771.42 1462 1509 409.8
C 1 1 234677 568.93 1462 1509 409.8
C 3 159 26683 61.42 1462 1509 409.8
D 13 7 135002 295.98 1432 1489 451.1
D 13 216 108488 237.2 1432 1489 451.1
D 1 4 108185 236.53 1432 1489 451.1

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