ASTROSAT CZTI

Data Quality Report

Orbit 13483

Creation date: 2024-06-27T16:41:29.083039
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/AS1A04_103T01_9000001988_13483cztM0_level2.evt modeM0/AS1A04_103T01_9000001988_13483cztM0_level2_quad_clean.evt
Size (bytes)830,399,040167,333,760
Size791.9 MB 159.6 MB
Events in quadrant A5,894,7911,051,761
Events in quadrant B6,076,4251,077,154
Events in quadrant C5,925,3391,048,123
Events in quadrant D6,375,688997,237

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0263044
B0265463
C0262393
D0281863

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02640
B02640
C02640
D02640

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A12931490.378934%
B12931910.703735%
C12931700.541335%
D12931640.494935%

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 14157 12933 1 1 0.01% 0.01%
B 14157 12932 15 15 0.11% 0.12%
C 14157 12932 0 0 0.00% 0.00%
D 14157 12932 5 5 0.04% 0.04%

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 50032 159.55 1507 1475 304.3
A 1 162 31036 97.13 1507 1475 304.3
A 0 226 13073 38.11 1507 1475 304.3
B 3 64 62654 210.01 1514 1472 291.3
B 0 214 57322 191.71 1514 1472 291.3
B 12 111 35050 115.26 1514 1472 291.3
C 3 233 129054 371.07 1482 1490 343.8
C 0 207 14108 36.7 1482 1490 343.8
C 13 61 10500 26.21 1482 1490 343.8
D 8 195 613983 1743.21 1463 1424 351.4
D 13 122 91926 257.55 1463 1424 351.4
D 13 249 49995 138.22 1463 1424 351.4

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