ASTROSAT CZTI

Data Quality Report

Orbit 05200

Creation date: 2024-06-27T14:52:36.187371
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_152T02_9000000658_05200cztM0_level2.evt modeM0/AS1G05_152T02_9000000658_05200cztM0_level2_quad_clean.evt
Size (bytes)87,258,2404,970,880
Size83.2 MB 4.7 MB
Events in quadrant A655,60315,683
Events in quadrant B649,39416,202
Events in quadrant C641,26815,906
Events in quadrant D614,86015,373

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A053312651
B052902653
C053422727
D053692809

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04624
B04628
C04616
D04523

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A115816914.594128%
B114615313.350785%
C113412210.758377%
D111811410.196780%

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 2339 1700 0 0 0.00% 0.00%
B 2341 1683 0 0 0.00% 0.00%
C 2339 1676 0 0 0.00% 0.00%
D 2342 1652 0 0 0.00% 0.00%

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 4 2 21702 588.03 164 160 36.6
A 12 194 1656 40.84 164 160 36.6
A 0 226 1587 38.95 164 160 36.6
B 15 204 14673 409.21 164 159 35.5
B 12 111 3247 87.06 164 159 35.5
B 11 111 2665 70.65 164 159 35.5
C 1 16 7184 172.78 161 161 40.6
C 8 128 2273 51.96 161 161 40.6
C 13 61 1297 27.95 161 161 40.6
D 2 136 7870 183.51 158 152 42.1
D 2 63 7628 177.76 158 152 42.1
D 10 15 3816 87.12 158 152 42.1

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