ASTROSAT CZTI

Data Quality Report

Orbit 09605

Creation date: 2024-06-27T15:48:17.573764
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_238T01_9000001364_09605cztM0_level2.evt modeM0/AS1G05_238T01_9000001364_09605cztM0_level2_quad_clean.evt
Size (bytes)454,564,80090,354,240
Size433.5 MB 86.2 MB
Events in quadrant A3,330,619572,126
Events in quadrant B3,385,474570,211
Events in quadrant C3,200,010556,125
Events in quadrant D3,366,075541,762

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015046347
B015136294
C014894360
D015239335

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01482
B01486
C01480
D01488

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7119710.997331%
B71441001.399776%
C7114640.899635%
D7128670.939955%

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 8878 7271 0 0 0.00% 0.00%
B 8878 7268 4 4 0.05% 0.06%
C 8878 7264 0 0 0.00% 0.00%
D 8878 7261 2 2 0.02% 0.03%

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 1 162 30581 171.15 848 829 173.8
A 1 178 12246 65.68 848 829 173.8
A 1 161 11471 61.22 848 829 173.8
B 10 252 20148 117.43 853 834 164.5
B 4 80 19364 112.67 853 834 164.5
B 12 111 19031 110.64 853 834 164.5
C 13 61 6045 27.14 820 825 192.3
C 3 202 2094 6.6 820 825 192.3
C 14 67 1898 5.58 820 825 192.3
D 1 52 76742 360.15 816 794 210.9
D 13 122 67411 315.9 816 794 210.9
D 8 195 37511 174.11 816 794 210.9

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