ASTROSAT CZTI

Data Quality Report

Orbit 18072

Creation date: 2024-06-27T17:44:40.784087
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/AS1A06_003T04_9000002682_18072cztM0_level2.evt modeM0/AS1A06_003T04_9000002682_18072cztM0_level2_quad_clean.evt
Size (bytes)169,632,00016,346,880
Size161.8 MB 15.6 MB
Events in quadrant A1,353,13292,530
Events in quadrant B990,27393,894
Events in quadrant C995,73988,233
Events in quadrant D1,654,53968,781

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0440
B0440
C0440
D0440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A054311
B043251
C043141
D063221

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A20741939.305689%
B2075492.361446%
C2075502.409639%
D207526912.963855%

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 2549 2075 2 2 0.08% 0.10%
B 2550 2076 0 0 0.00% 0.00%
C 2550 2076 0 0 0.00% 0.00%
D 2550 2075 228 228 8.94% 10.99%

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 14 111 357707 6930.18 245 240 51.6
A 15 174 47099 908.45 245 240 51.6
A 4 2 3129 56.01 245 240 51.6
B 12 111 6040 112.61 251 243 51.5
B 11 111 5300 98.23 251 243 51.5
B 0 230 5037 93.12 251 243 51.5
C 14 238 36944 617.1 244 245 59.5
C 3 233 2960 45.65 244 245 59.5
C 9 160 1918 28.13 244 245 59.5
D 7 238 694018 12412.49 221 215 55.9
D 5 222 57323 1021.69 221 215 55.9
D 11 176 45938 818.01 221 215 55.9

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