ASTROSAT CZTI

Data Quality Report

Orbit 20230929_C07_001T10_9000005862_level2

Creation date: 2023-09-30T15:20:50.523995
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/AS1C07_001T10_9000005862cztM0_level2.fits modeM0/AS1C07_001T10_9000005862cztM0_level2_quad_clean.evt
Size (bytes)64,022,40059,472,000
Size61.1 MB 56.7 MB
Events in quadrant A379,570332,684
Events in quadrant B362,506341,020
Events in quadrant C370,360323,601
Events in quadrant D321,028297,100

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0270

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159720
B0148710
C0147140
D0160840

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7262620.853759%
B7262110.151473%
C726270.096392%
D7262550.757367%

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 9055 7262 0 0 0.00% 0.00%
B 9055 7262 0 0 0.00% 0.00%
C 9055 7262 0 0 0.00% 0.00%
D 9055 7262 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 9 19 316 8.08 99 93 27.6
A 7 110 309 7.83 99 93 27.6
A 0 29 296 7.36 99 93 27.6
B 2 9 329 11.65 95 91 20.4
B 5 128 282 9.35 95 91 20.4
B 2 8 269 8.71 95 91 20.4
C 1 81 302 7.93 97 91 26.6
C 3 203 291 7.51 97 91 26.6
C 7 221 288 7.4 97 91 26.6
D 4 160 246 6.12 91 83 26.6
D 6 67 245 6.09 91 83 26.6
D 6 62 237 5.79 91 83 26.6

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