ASTROSAT CZTI

Data Quality Report

Orbit 22607

Creation date: 2024-06-27T18:43:27.968764
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/AS1C05_006T01_9000003356_22607cztM0_level2.evt modeM0/AS1C05_006T01_9000003356_22607cztM0_level2_quad_clean.evt
Size (bytes)128,232,00038,116,800
Size122.3 MB 36.4 MB
Events in quadrant A943,821264,658
Events in quadrant B955,624270,002
Events in quadrant C906,399248,256
Events in quadrant D959,225245,992

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A038781
B039541
C037731
D039051

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1705170.997067%
B1705160.938416%
C1705241.407625%
D1705100.586510%

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 1705 1705 0 0 0.00% 0.00%
B 1705 1705 0 0 0.00% 0.00%
C 1705 1705 0 0 0.00% 0.00%
D 1705 1705 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 13 254 2955 53.91 244 240 50.4
A 0 226 2197 38.86 244 240 50.4
A 3 137 1953 34.01 244 240 50.4
B 0 229 7529 154.39 238 233 47.3
B 0 197 6318 128.77 238 233 47.3
B 12 111 5287 106.95 238 233 47.3
C 14 238 34881 653.17 221 222 53.1
C 10 22 4702 84.43 221 222 53.1
C 0 10 2589 44.61 221 222 53.1
D 1 52 52123 896.99 231 224 57.9
D 12 0 17686 301.8 231 224 57.9
D 12 227 8801 148.24 231 224 57.9

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