ASTROSAT CZTI

Data Quality Report

Orbit 43867

Creation date: 2024-06-27T22:56:43.935128
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/AS1A13_087T01_9000005908_43867cztM0_level2.fits modeM0/AS1A13_087T01_9000005908_43867cztM0_level2_quad_clean.evt
Size (bytes)537,877,440112,155,840
Size513.0 MB 107.0 MB
Events in quadrant A4,260,863757,751
Events in quadrant B3,801,296785,635
Events in quadrant C5,724,047735,264
Events in quadrant D5,606,637652,254

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0169022
B0155532
C0217692
D0211682

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66742553.820797%
B66742914.360204%
C66744296.427929%
D667468710.293677%

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 7654 6674 4 4 0.05% 0.06%
B 7654 6674 57 57 0.74% 0.85%
C 7654 6674 161 161 2.10% 2.41%
D 7653 6673 512 512 6.69% 7.67%

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 10 83 1038182 6211.91 807 790 167.0
A 15 223 56975 336.44 807 790 167.0
A 2 79 25212 146.24 807 790 167.0
B 5 235 267688 1679.99 802 777 158.9
B 0 183 149337 935.07 802 777 158.9
B 4 170 116221 726.63 802 777 158.9
C 3 233 2371845 12809.45 786 790 185.1
C 14 254 123304 661.87 786 790 185.1
C 12 249 57953 308.82 786 790 185.1
D 7 80 956103 4941.43 775 754 193.3
D 13 249 588855 3041.88 775 754 193.3
D 5 235 308926 1593.98 775 754 193.3

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