ASTROSAT CZTI

Data Quality Report

Orbit 06573

Creation date: 2024-06-27T15:08:56.331670
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_246T04_9000000882_06573cztM0_level2.evt modeM0/AS1G05_246T04_9000000882_06573cztM0_level2_quad_clean.evt
Size (bytes)798,903,360156,525,120
Size761.9 MB 149.3 MB
Events in quadrant A4,718,4491,020,559
Events in quadrant B5,202,2431,045,568
Events in quadrant C4,661,4691,032,002
Events in quadrant D8,925,161938,209

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0209582
B0222562
C0209502
D0338022

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02080
B02080
C02080
D02080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0270

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A10165430.423020%
B101651401.377275%
C10165280.275455%
D101654494.417118%

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 12825 10167 0 0 0.00% 0.00%
B 12825 10167 53 53 0.41% 0.52%
C 12825 10167 2 2 0.02% 0.02%
D 12825 10167 436 436 3.40% 4.29%

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 15 85460 348.82 1202 1181 241.6
A 0 226 11579 43.04 1202 1181 241.6
A 12 194 10588 38.93 1202 1181 241.6
B 0 219 140038 609.4 1218 1192 227.8
B 4 48 138919 604.49 1218 1192 227.8
B 5 143 86695 375.28 1218 1192 227.8
C 9 237 25905 91.38 1180 1187 270.5
C 10 22 17691 61.01 1180 1187 270.5
C 13 61 9297 29.98 1180 1187 270.5
D 14 34 2044191 7247.53 1146 1111 281.9
D 12 221 1875071 6647.6 1146 1111 281.9
D 2 63 303789 1073.71 1146 1111 281.9

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