ASTROSAT CZTI

Data Quality Report

Orbit 14692

Creation date: 2024-06-27T16:58:32.776908
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_14692cztM0_level2.evt modeM0/AS1A04_011T07_9000002172_14692cztM0_level2_quad_clean.evt
Size (bytes)477,875,52099,904,320
Size455.7 MB 95.3 MB
Events in quadrant A3,528,074668,163
Events in quadrant B3,254,865654,949
Events in quadrant C4,174,318636,594
Events in quadrant D3,097,038635,498

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144862
B0135421
C0166731
D0132121

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61631081.752393%
B6163941.525231%
C6163951.541457%
D6163731.184488%

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 7429 6164 0 0 0.00% 0.00%
B 7429 6164 1 1 0.01% 0.02%
C 7429 6164 8 8 0.11% 0.13%
D 7429 6164 12 12 0.16% 0.19%

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 214308 1319.69 811 797 161.8
A 3 1 65687 401.08 811 797 161.8
A 1 162 47481 288.55 811 797 161.8
B 10 16 90803 606.25 792 778 148.5
B 0 205 18867 121.81 792 778 148.5
B 12 111 16662 106.97 792 778 148.5
C 3 233 1087173 6184.2 763 769 175.7
C 0 207 109677 619.94 763 769 175.7
C 13 61 5637 27.71 763 769 175.7
D 10 199 36759 172.67 775 760 208.5
D 2 234 30514 142.71 775 760 208.5
D 2 120 27597 128.72 775 760 208.5

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