ASTROSAT CZTI

Data Quality Report

Orbit 05340

Creation date: 2024-06-27T14:54:04.316541
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_240T01_9000000674_05340cztM0_level2.evt modeM0/AS1G05_240T01_9000000674_05340cztM0_level2_quad_clean.evt
Size (bytes)285,454,08056,744,640
Size272.2 MB 54.1 MB
Events in quadrant A1,890,079362,795
Events in quadrant B2,245,992372,857
Events in quadrant C2,299,828356,246
Events in quadrant D1,930,715338,783

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A084123
B0941114
C093856
D086116

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0860
B0860
C0860
D0860

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4069300.737282%
B4066842.065912%
C4068250.614553%
D4068190.467060%

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 5335 4070 0 0 0.00% 0.00%
B 5335 4070 29 29 0.54% 0.71%
C 5335 4071 0 0 0.00% 0.00%
D 5335 4071 3 3 0.06% 0.07%

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 12 194 4912 44.22 489 479 100.3
A 0 226 4725 42.35 489 479 100.3
A 0 50 4324 38.35 489 479 100.3
B 10 16 205423 2150.6 499 487 95.3
B 4 80 68228 710.88 499 487 95.3
B 15 204 14149 143.37 499 487 95.3
C 1 16 423636 3816.23 478 482 110.9
C 14 67 7998 67.78 478 482 110.9
C 13 61 3905 30.87 478 482 110.9
D 4 95 49529 419.06 471 455 117.1
D 8 195 40865 345.08 471 455 117.1
D 13 105 29606 248.93 471 455 117.1

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