ASTROSAT CZTI

Data Quality Report

Orbit 14693

Creation date: 2024-06-27T16:58:33.530227
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_011T07_9000002172_14693cztM0_level2.evt modeM0/AS1A04_011T07_9000002172_14693cztM0_level2_quad_clean.evt
Size (bytes)494,910,72094,080,960
Size472.0 MB 89.7 MB
Events in quadrant A3,510,406613,656
Events in quadrant B3,732,290599,758
Events in quadrant C4,043,223590,196
Events in quadrant D3,259,385590,180

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146643
B0153042
C0163982
D0140802

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65241011.548130%
B65242353.602085%
C6524771.180258%
D6524600.919681%

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 7605 6525 0 0 0.00% 0.00%
B 7605 6525 104 104 1.37% 1.59%
C 7605 6525 9 9 0.12% 0.14%
D 7605 6525 11 11 0.14% 0.17%

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 15 259618 1527.04 836 823 169.5
A 12 189 17516 98.5 836 823 169.5
A 0 226 7777 41.03 836 823 169.5
B 10 16 369651 2361.84 816 797 156.2
B 0 229 124432 791.66 816 797 156.2
B 12 111 17689 108.16 816 797 156.2
C 3 233 845930 4603.15 794 799 183.6
C 0 207 95118 513.72 794 799 183.6
C 13 61 5684 26.61 794 799 183.6
D 12 110 116186 550.75 803 784 209.5
D 2 234 25707 118.94 803 784 209.5
D 9 1 22965 105.86 803 784 209.5

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