ASTROSAT CZTI

Data Quality Report

Orbit 12238

Creation date: 2024-06-27T16:24:16.417877
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/AS1C03_014T03_9000001808_12238cztM0_level2.evt modeM0/AS1C03_014T03_9000001808_12238cztM0_level2_quad_clean.evt
Size (bytes)204,825,60038,211,840
Size195.3 MB 36.4 MB
Events in quadrant A1,323,978261,286
Events in quadrant B2,710,215231,081
Events in quadrant C949,415252,874
Events in quadrant D1,061,918246,123

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A054341
B097030
C046840
D048690

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0460
B0460
C0460
D0460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2292150.654450%
B229233614.659686%
C229260.261780%
D229290.392670%

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 2293 2293 9 9 0.39% 0.39%
B 2293 2293 216 216 9.42% 9.42%
C 2293 2293 6 6 0.26% 0.26%
D 2293 2293 5 5 0.22% 0.22%

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 13 251 226895 4552.87 234 230 49.8
A 1 162 48279 965.13 234 230 49.8
A 8 15 31391 625.91 234 230 49.8
B 4 206 1188261 28034.7 217 211 42.4
B 4 239 559926 13207.73 217 211 42.4
B 3 64 71393 1679.7 217 211 42.4
C 15 208 38228 688.86 229 229 55.2
C 4 175 4486 77.17 229 229 55.2
C 12 4 3734 63.54 229 229 55.2
D 1 52 80446 1445.73 225 218 55.5
D 13 249 43293 776.22 225 218 55.5
D 10 199 23045 411.35 225 218 55.5

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