ASTROSAT CZTI

Data Quality Report

Orbit 09519

Creation date: 2024-06-27T15:47:11.168150
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_230T06_9000001350_09519cztM0_level2.evt modeM0/AS1G05_230T06_9000001350_09519cztM0_level2_quad_clean.evt
Size (bytes)2,873,315,520466,441,920
Size2.7 GB 444.8 MB
Events in quadrant A21,326,6142,883,177
Events in quadrant B19,160,9112,916,097
Events in quadrant C21,740,6492,806,815
Events in quadrant D22,078,6762,763,011

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0895549
B0837008
C09320712
D09241510

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A08200
B08200
C08200
D08200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400
B0400
C0400
D0400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A401643560.886366%
B401642170.540285%
C4016228347.056421%
D401633680.916266%

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 44314 40172 58 58 0.13% 0.14%
B 44314 40172 17 17 0.04% 0.04%
C 44314 40172 1157 1157 2.61% 2.88%
D 44314 40172 276 276 0.62% 0.69%

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 8 5 1138761 1183.4 4705 4612 958.4
A 1 162 927603 963.08 4705 4612 958.4
A 1 178 355267 365.88 4705 4612 958.4
B 0 214 241117 264.21 4729 4618 895.1
B 0 219 229192 250.89 4729 4618 895.1
B 10 252 137090 148.0 4729 4618 895.1
C 4 254 4814595 4795.48 4320 4330 1003.1
C 14 234 37962 33.53 4320 4330 1003.1
C 13 61 32639 28.22 4320 4330 1003.1
D 8 195 2262641 1983.59 4513 4395 1138.5
D 1 52 1130885 989.48 4513 4395 1138.5
D 13 137 330421 286.37 4513 4395 1138.5

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