ASTROSAT CZTI

Data Quality Report

Orbit 23829

Creation date: 2024-06-27T18:59:08.598698
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/AS1A07_113T01_9000003526_23829cztM0_level2.evt modeM0/AS1A07_113T01_9000003526_23829cztM0_level2_quad_clean.evt
Size (bytes)956,661,120126,673,920
Size912.3 MB 120.8 MB
Events in quadrant A4,469,424827,228
Events in quadrant B4,674,310846,809
Events in quadrant C4,681,341828,108
Events in quadrant D14,525,315694,402

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01880
B01880
C01880
D01880

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190961
B0195772
C0195915
D0496321

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A9210410.445168%
B92101081.172638%
C92091561.693995%
D9211325835.370752%

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 37817 9212 0 0 0.00% 0.00%
B 37818 9212 26 26 0.07% 0.28%
C 37818 9211 2 2 0.01% 0.02%
D 37818 9213 2986 2986 7.90% 32.41%

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 13 254 15787 62.65 1159 1137 233.9
A 3 137 10144 38.52 1159 1137 233.9
A 0 226 9853 37.27 1159 1137 233.9
B 3 64 112304 501.98 1159 1131 221.5
B 12 111 26606 115.03 1159 1131 221.5
B 11 111 23476 100.89 1159 1131 221.5
C 14 238 183490 691.45 1129 1140 263.7
C 0 10 62622 233.13 1129 1140 263.7
C 0 207 30792 112.44 1129 1140 263.7
D 13 174 3923609 16515.35 987 961 237.5
D 1 52 3716720 15644.3 987 961 237.5
D 8 195 3131769 13181.5 987 961 237.5

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