ASTROSAT CZTI

Data Quality Report

Orbit 29442

Creation date: 2024-06-27T20:02:11.573730
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/AS1A10_045T08_9000004208_29442cztM0_level2.evt modeM0/AS1A10_045T08_9000004208_29442cztM0_level2_quad_clean.evt
Size (bytes)83,180,16021,504,960
Size79.3 MB 20.5 MB
Events in quadrant A545,773149,807
Events in quadrant B550,418154,263
Events in quadrant C788,361135,176
Events in quadrant D567,307138,323

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06444
B06442
C06446
D06951

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080815957
B074375287
C0110448065
D0117799496

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0141
C0140
D0151

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A96040.416667%
B98260.610998%
C919272.937976%
D92530.324324%

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 4364 1063 0 0 0.00% 0.00%
B 4396 1086 0 0 0.00% 0.00%
C 4206 1009 0 0 0.00% 0.00%
D 4232 1011 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 1 113 3623 117.91 140 138 29.6
A 13 254 1631 50.51 140 138 29.6
A 3 137 1228 36.88 140 138 29.6
B 0 230 4396 151.25 137 134 28.2
B 12 111 3033 102.88 137 134 28.2
B 11 111 2770 93.55 137 134 28.2
C 3 233 282073 9516.76 122 123 29.6
C 14 238 23106 775.75 122 123 29.6
C 14 254 4561 149.8 122 123 29.6
D 8 195 49540 1561.72 128 125 31.6
D 1 52 19298 605.95 128 125 31.6
D 7 80 5864 181.38 128 125 31.6

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