ASTROSAT CZTI

Data Quality Report

Orbit 09306

Creation date: 2024-06-27T15:44:19.929253
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/AS1G07_077T04_9000001312_09306cztM0_level2.evt modeM0/AS1G07_077T04_9000001312_09306cztM0_level2_quad_clean.evt
Size (bytes)115,551,36034,989,120
Size110.2 MB 33.4 MB
Events in quadrant A812,939236,186
Events in quadrant B923,338239,501
Events in quadrant C826,806239,594
Events in quadrant D825,738226,678

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0322
D0320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0342312
B0374916
C034457
D0348218

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A159040.251572%
B1589100.629327%
C159210.062814%
D158810.062972%

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 1595 1595 0 0 0.00% 0.00%
B 1595 1594 0 0 0.00% 0.00%
C 1595 1595 0 0 0.00% 0.00%
D 1595 1595 1 1 0.06% 0.06%

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 9564 218.07 205 201 42.9
A 1 162 6536 147.54 205 201 42.9
A 1 178 1848 38.36 205 201 42.9
B 0 219 87116 2168.41 207 202 40.1
B 0 214 17337 427.5 207 202 40.1
B 10 245 4551 108.5 207 202 40.1
C 9 68 14740 294.91 208 210 49.3
C 13 61 1546 27.12 208 210 49.3
C 8 222 1141 18.9 208 210 49.3
D 1 52 16516 320.9 205 198 50.9
D 7 71 13066 253.06 205 198 50.9
D 12 233 12486 241.65 205 198 50.9

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