ASTROSAT CZTI

Data Quality Report

Orbit 09017

Creation date: 2024-06-27T15:40:24.132720
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_033T01_9000001254_09017cztM0_level2.evt modeM0/AS1G07_033T01_9000001254_09017cztM0_level2_quad_clean.evt
Size (bytes)1,545,062,400278,343,360
Size1.4 GB 265.4 MB
Events in quadrant A13,207,5601,770,478
Events in quadrant B11,199,9731,782,586
Events in quadrant C9,489,2401,751,867
Events in quadrant D11,495,7521,697,792

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0490
B0490
C0490
D0490

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05240713
B04650014
C0424216
D04796911

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04200
B04200
C04200
D04200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A207434242.044063%
B207405922.854388%
C207441590.766487%
D207434402.121198%

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 25594 20747 104 104 0.41% 0.50%
B 25589 20743 313 313 1.22% 1.51%
C 25594 20750 0 0 0.00% 0.00%
D 25594 20747 241 241 0.94% 1.16%

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 2767402 5528.26 2522 2470 500.1
A 3 1 380023 754.89 2522 2470 500.1
A 1 162 149602 294.18 2522 2470 500.1
B 10 16 989777 2102.21 2516 2457 469.7
B 4 48 164137 344.25 2516 2457 469.7
B 0 214 106759 222.08 2516 2457 469.7
C 13 61 18638 29.17 2431 2442 555.3
C 7 223 7174 8.52 2431 2442 555.3
C 12 4 6235 6.83 2431 2442 555.3
D 6 225 695690 1088.48 2419 2356 637.0
D 1 52 381953 595.93 2419 2356 637.0
D 4 95 359815 561.18 2419 2356 637.0

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