ASTROSAT CZTI

Data Quality Report

Orbit 29619

Creation date: 2024-06-27T20:06:07.200194
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/AS1T03_286T01_9000004268_29619cztM0_level2.evt modeM0/AS1T03_286T01_9000004268_29619cztM0_level2_quad_clean.evt
Size (bytes)478,365,120112,605,120
Size456.2 MB 107.4 MB
Events in quadrant A3,322,747729,588
Events in quadrant B3,408,754750,155
Events in quadrant C3,486,927720,658
Events in quadrant D3,772,253701,538

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149182
B0149822
C0152032
D0161292

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7306670.917054%
B73061101.505612%
C73061171.601423%
D7306360.492746%

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 7906 7308 0 0 0.00% 0.00%
B 7906 7308 0 0 0.00% 0.00%
C 7906 7307 6 6 0.08% 0.08%
D 7906 7308 8 8 0.10% 0.11%

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 13 21592 120.3 855 835 172.5
A 13 254 12579 68.07 855 835 172.5
A 3 137 8718 45.69 855 835 172.5
B 15 33 22163 131.33 858 835 162.4
B 12 111 20965 123.95 858 835 162.4
B 11 111 18535 108.99 858 835 162.4
C 14 238 143083 741.96 827 832 191.7
C 10 22 41319 211.17 827 832 191.7
C 3 233 31094 157.84 827 832 191.7
D 8 195 407155 2061.85 827 806 197.1
D 12 227 96676 486.45 827 806 197.1
D 2 250 69957 350.88 827 806 197.1

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