ASTROSAT CZTI

Data Quality Report

Orbit 14204

Creation date: 2024-06-27T16:51:50.941141
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/AS1C03_022T01_9000002098_14204cztM0_level2.evt modeM0/AS1C03_022T01_9000002098_14204cztM0_level2_quad_clean.evt
Size (bytes)602,435,52078,295,680
Size574.5 MB 74.7 MB
Events in quadrant A3,623,723484,253
Events in quadrant B4,954,335474,965
Events in quadrant C3,664,831459,927
Events in quadrant D5,520,034456,781

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149602
B0193041
C0149721
D0211401

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7108731.027012%
B71087089.960608%
C7108670.942600%
D710876110.706246%

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 7434 7110 1 1 0.01% 0.01%
B 7434 7110 351 351 4.72% 4.94%
C 7434 7110 0 0 0.00% 0.00%
D 7434 7110 504 504 6.78% 7.09%

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 167662 932.29 872 854 178.9
A 12 189 61070 336.55 872 854 178.9
A 15 69 16381 86.78 872 854 178.9
B 0 182 1297175 8069.6 830 810 160.6
B 4 142 164343 1017.96 830 810 160.6
B 15 185 40088 244.5 830 810 160.6
C 3 233 384825 1998.02 830 833 192.2
C 0 207 43354 221.25 830 833 192.2
C 13 61 6109 27.45 830 833 192.2
D 13 122 1240812 6501.02 783 763 190.7
D 8 195 242846 1269.13 783 763 190.7
D 5 222 229703 1200.23 783 763 190.7

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