ASTROSAT CZTI

Data Quality Report

Orbit 04140

Creation date: 2024-06-27T14:37:57.461382
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_240T01_9000000536_04140cztM0_level2.evt modeM0/AS1G05_240T01_9000000536_04140cztM0_level2_quad_clean.evt
Size (bytes)258,125,76046,679,040
Size246.2 MB 44.5 MB
Events in quadrant A1,880,360288,875
Events in quadrant B1,948,228290,606
Events in quadrant C1,838,615282,784
Events in quadrant D1,881,637273,663

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0800
B0800
C0800
D0800

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A081562
B082741
C081001
D083451

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3928631.603870%
B3928641.629328%
C3928290.738289%
D3928260.661914%

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 5223 3928 0 0 0.00% 0.00%
B 5223 3928 0 0 0.00% 0.00%
C 5223 3928 0 0 0.00% 0.00%
D 5223 3929 7 7 0.13% 0.18%

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 17419 171.53 481 470 98.8
A 0 118 5734 53.27 481 470 98.8
A 0 226 5545 51.36 481 470 98.8
B 14 167 19095 198.56 486 475 93.8
B 15 204 16238 168.09 486 475 93.8
B 0 183 11926 122.11 486 475 93.8
C 13 61 3775 29.76 470 472 111.0
C 1 16 2895 21.83 470 472 111.0
C 3 202 1178 6.36 470 472 111.0
D 13 239 44507 389.52 466 452 113.1
D 13 137 24071 208.83 466 452 113.1
D 2 14 18521 159.76 466 452 113.1

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