ASTROSAT CZTI

Data Quality Report

Orbit 22082

Creation date: 2024-06-27T18:36:27.563286
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/AS1A07_149T01_9000003270_22082cztM0_level2.evt modeM0/AS1A07_149T01_9000003270_22082cztM0_level2_quad_clean.evt
Size (bytes)84,810,24022,288,320
Size80.9 MB 21.3 MB
Events in quadrant A531,460150,531
Events in quadrant B559,188152,675
Events in quadrant C607,180145,303
Events in quadrant D786,591136,051

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A023891
B024081
C025181
D032081

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A118910.084104%
B118930.252313%
C118950.420521%
D11891038.662742%

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 1189 1189 0 0 0.00% 0.00%
B 1189 1189 0 0 0.00% 0.00%
C 1189 1189 0 0 0.00% 0.00%
D 1189 1189 97 97 8.16% 8.16%

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 13 254 1898 58.42 137 134 30.2
A 3 137 1231 36.33 137 134 30.2
A 0 226 1171 34.35 137 134 30.2
B 3 64 5044 168.18 140 137 29.2
B 0 230 3633 119.82 140 137 29.2
B 12 111 3393 111.59 140 137 29.2
C 0 239 64014 1911.37 133 134 33.4
C 14 238 20756 617.04 133 134 33.4
C 13 61 917 23.43 133 134 33.4
D 1 52 292802 8969.74 125 121 32.6
D 2 136 6450 193.96 125 121 32.6
D 2 16 5506 165.03 125 121 32.6

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