ASTROSAT CZTI

Data Quality Report

Orbit 10588

Creation date: 2024-06-27T16:01:10.406385
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/AS1T01_191T01_9000001536_10588cztM0_level2.evt modeM0/AS1T01_191T01_9000001536_10588cztM0_level2_quad_clean.evt
Size (bytes)889,110,720157,248,000
Size847.9 MB 150.0 MB
Events in quadrant A5,245,0101,024,978
Events in quadrant B9,033,225963,490
Events in quadrant C5,246,5831,032,748
Events in quadrant D6,650,026971,588

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02260
B02260
C02260
D02260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0228723
B0341542
C0232672
D0267032

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A11121960.863232%
B11121116110.439709%
C11121520.467584%
D111211441.294848%

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 12297 11123 0 0 0.00% 0.00%
B 12297 11123 843 843 6.86% 7.58%
C 12297 11123 10 10 0.08% 0.09%
D 12297 11123 62 62 0.50% 0.56%

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 92231 333.58 1323 1298 272.6
A 1 162 28737 100.66 1323 1298 272.6
A 1 178 12087 39.58 1323 1298 272.6
B 4 239 3451894 14033.72 1281 1254 245.9
B 15 185 232865 941.96 1281 1254 245.9
B 0 219 139417 561.91 1281 1254 245.9
C 4 254 217201 725.31 1283 1297 297.7
C 4 175 11964 35.83 1283 1297 297.7
C 14 234 9902 28.91 1283 1297 297.7
D 2 16 462295 1484.48 1272 1240 310.6
D 8 195 395641 1269.87 1272 1240 310.6
D 5 222 259999 833.14 1272 1240 310.6

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