ASTROSAT CZTI

Data Quality Report

Orbit 11292

Creation date: 2024-06-27T16:10:52.196668
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/AS1A04_144T01_9000001652_11292cztM0_level2.evt modeM0/AS1A04_144T01_9000001652_11292cztM0_level2_quad_clean.evt
Size (bytes)648,227,52096,382,080
Size618.2 MB 91.9 MB
Events in quadrant A6,338,299584,124
Events in quadrant B4,014,035639,286
Events in quadrant C3,332,522624,400
Events in quadrant D5,454,344564,382

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0237993
B0168852
C0151512
D0214272

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A727492312.689029%
B72742593.560627%
C7274580.797360%
D72745117.025021%

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 9224 7276 606 606 6.57% 8.33%
B 9224 7276 64 64 0.69% 0.88%
C 9224 7276 0 0 0.00% 0.00%
D 9224 7276 363 363 3.94% 4.99%

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 8 5 2990886 17637.09 827 811 169.5
A 14 238 106036 620.67 827 811 169.5
A 8 15 37538 216.64 827 811 169.5
B 4 239 508507 3000.04 875 855 169.2
B 15 204 36908 213.06 875 855 169.2
B 0 214 21782 123.67 875 855 169.2
C 13 61 6519 28.57 854 857 198.2
C 14 234 2211 6.83 854 857 198.2
C 3 202 2111 6.33 854 857 198.2
D 12 157 689158 3541.05 815 792 194.4
D 1 52 638519 3280.55 815 792 194.4
D 10 253 385397 1978.46 815 792 194.4

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