ASTROSAT CZTI

Data Quality Report

Orbit 03489

Creation date: 2024-06-27T14:29:40.437679
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/AS1G05_211T01_9000000464_03489cztM0_level2.evt modeM0/AS1G05_211T01_9000000464_03489cztM0_level2_quad_clean.evt
Size (bytes)473,777,28074,485,440
Size451.8 MB 71.0 MB
Events in quadrant A3,162,618462,264
Events in quadrant B3,414,682465,245
Events in quadrant C4,455,343443,887
Events in quadrant D2,889,039445,374

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137943
B0143992
C0174872
D0132052

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6275871.386454%
B6275340.541833%
C62753295.243028%
D6275320.509960%

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 7550 6276 39 39 0.52% 0.62%
B 7550 6275 1 1 0.01% 0.02%
C 7550 6276 299 299 3.96% 4.76%
D 7550 6276 11 11 0.15% 0.18%

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 0 50 323553 2166.71 732 716 149.0
A 8 15 12441 78.69 732 716 149.0
A 0 226 8194 50.18 732 716 149.0
B 15 204 401195 2810.73 745 728 142.5
B 2 249 45417 313.66 745 728 142.5
B 15 85 29910 204.82 745 728 142.5
C 7 220 1486766 9010.82 707 712 164.9
C 1 16 88606 532.95 707 712 164.9
C 1 192 71574 429.68 707 712 164.9
D 13 239 54841 311.44 717 695 173.9
D 5 233 37644 212.52 717 695 173.9
D 13 223 36358 205.13 717 695 173.9

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