ASTROSAT CZTI

Data Quality Report

Orbit 04138

Creation date: 2024-06-27T14:39:53.562674
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/AS1SLEW_01234_9000000533_04138cztM0_level2.evt modeM0/AS1SLEW_01234_9000000533_04138cztM0_level2_quad_clean.evt
Size (bytes)99,264,9605,374,080
Size94.7 MB 5.1 MB
Events in quadrant A688,56512,061
Events in quadrant B706,08712,459
Events in quadrant C698,16611,864
Events in quadrant D805,82711,683

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030950
B031060
C031000
D034660

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A154200.000000%
B154200.000000%
C154200.000000%
D1542171.102464%

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 1542 1542 0 0 0.00% 0.00%
B 1542 1542 0 0 0.00% 0.00%
C 1542 1542 0 0 0.00% 0.00%
D 1541 1541 18 18 1.17% 1.17%

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 14 9163 237.26 175 172 37.9
A 0 226 1743 41.46 175 172 37.9
A 12 194 1709 40.56 175 172 37.9
B 4 81 4041 106.65 179 175 36.2
B 10 16 3275 85.52 179 175 36.2
B 12 111 3048 79.26 179 175 36.2
C 10 65 14370 332.62 174 175 42.7
C 13 61 1519 31.49 174 175 42.7
C 5 251 551 8.81 174 175 42.7
D 10 172 75777 1776.09 170 165 42.6
D 13 239 41218 964.31 170 165 42.6
D 13 137 28052 655.05 170 165 42.6

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