ASTROSAT CZTI

Data Quality Report

Orbit 20730

Creation date: 2024-06-27T18:18:51.614015
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/AS1A05_165T07_9000003062_20730cztM0_level2.evt modeM0/AS1A05_165T07_9000003062_20730cztM0_level2_quad_clean.evt
Size (bytes)75,692,16018,264,960
Size72.2 MB 17.4 MB
Events in quadrant A454,680132,526
Events in quadrant B509,370123,711
Events in quadrant C429,550122,735
Events in quadrant D834,878103,909

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0288
B02812
C02814
D0288

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02886977
B033721293
C02829979
D060322951

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A93500.000000%
B89980.889878%
C92230.325380%
D82412114.684466%

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 1304 1067 0 0 0.00% 0.00%
B 1289 1005 7 7 0.54% 0.70%
C 1320 1045 0 0 0.00% 0.00%
D 1287 921 109 109 8.47% 11.83%

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 6 240 7220 282.89 116 113 25.1
A 8 205 1265 45.86 116 113 25.1
A 0 226 1071 38.13 116 113 25.1
B 7 220 60157 2733.71 107 105 22.0
B 0 189 15633 706.87 107 105 22.0
B 0 197 9084 408.75 107 105 22.0
C 14 238 15894 611.53 104 105 25.8
C 3 233 4831 183.04 104 105 25.8
C 13 61 741 24.63 104 105 25.8
D 1 52 366231 15016.17 93 90 24.4
D 1 20 83813 3433.65 93 90 24.4
D 12 227 16132 657.91 93 90 24.4

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