ASTROSAT CZTI

Data Quality Report

Orbit 05895

Creation date: 2024-06-27T15:00:34.658134
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/AS1A02_114T01_9000000764_05895cztM0_level2.evt modeM0/AS1A02_114T01_9000000764_05895cztM0_level2_quad_clean.evt
Size (bytes)606,545,28086,232,960
Size578.4 MB 82.2 MB
Events in quadrant A4,290,696512,834
Events in quadrant B4,197,028507,182
Events in quadrant C4,052,672507,438
Events in quadrant D5,245,977487,377

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01740
B01742
C01740
D01740

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A018532176
B018462171
C018483161
D021853240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A85854525.264997%
B85834445.173016%
C85883323.865859%
D85804905.710956%

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 9103 8658 0 0 0.00% 0.00%
B 9103 8661 0 0 0.00% 0.00%
C 9103 8656 0 0 0.00% 0.00%
D 9103 8656 75 75 0.82% 0.87%

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 15 236 237945 1091.97 1049 1021 217.0
A 12 194 10146 42.05 1049 1021 217.0
A 0 226 9950 41.15 1049 1021 217.0
B 15 204 92336 439.71 1055 1023 207.7
B 12 111 20768 95.08 1055 1023 207.7
B 11 111 16287 73.5 1055 1023 207.7
C 13 61 8229 29.68 1036 1039 242.3
C 9 247 4329 13.58 1036 1039 242.3
C 14 67 3170 8.8 1036 1039 242.3
D 12 233 331694 1305.14 1030 995 253.4
D 2 152 309192 1216.33 1030 995 253.4
D 13 105 280655 1103.71 1030 995 253.4

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