ASTROSAT CZTI

Data Quality Report

Orbit 09671

Creation date: 2024-06-27T15:49:11.737898
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_046T01_9000001374_09671cztM0_level2.evt modeM0/AS1G07_046T01_9000001374_09671cztM0_level2_quad_clean.evt
Size (bytes)203,895,36031,325,760
Size194.4 MB 29.9 MB
Events in quadrant A1,503,974188,375
Events in quadrant B1,486,658187,589
Events in quadrant C1,468,232184,022
Events in quadrant D1,514,905179,597

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0644
B0640
C0646
D0644

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0111
B0110
C0110
D0111

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06651435
B06667535
C06647416
D06854462

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2927943.211479%
B28851003.466205%
C2937822.791965%
D2927682.323198%

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 4203 3073 0 0 0.00% 0.00%
B 4202 3058 0 0 0.00% 0.00%
C 4203 3076 0 0 0.00% 0.00%
D 4203 3063 6 6 0.14% 0.20%

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 0 226 3520 39.17 390 383 80.1
A 12 194 3014 32.85 390 383 80.1
A 13 253 2049 20.8 390 383 80.1
B 12 111 9050 113.81 382 372 76.2
B 11 111 7249 90.19 382 372 76.2
B 14 111 5854 71.9 382 372 76.2
C 13 61 2679 25.84 376 378 89.1
C 7 159 946 6.38 376 378 89.1
C 3 202 878 5.61 376 378 89.1
D 2 152 79667 799.33 371 363 99.2
D 1 52 12150 118.81 371 363 99.2
D 2 234 9511 92.21 371 363 99.2

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