ASTROSAT CZTI

Data Quality Report

Orbit 22985

Creation date: 2024-06-27T18:48:17.418891
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/AS1A07_047T09_9000003396_22985cztM0_level2.evt modeM0/AS1A07_047T09_9000003396_22985cztM0_level2_quad_clean.evt
Size (bytes)477,780,480117,573,120
Size455.6 MB 112.1 MB
Events in quadrant A3,240,924786,069
Events in quadrant B3,413,485811,977
Events in quadrant C3,400,656775,755
Events in quadrant D3,980,981741,551

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134093
B0139523
C0138164
D0159673

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6388190.297433%
B6388480.751409%
C6387671.049006%
D6387791.236887%

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 7738 6390 0 0 0.00% 0.00%
B 7738 6390 1 1 0.01% 0.02%
C 7737 6389 0 0 0.00% 0.00%
D 7737 6389 32 32 0.41% 0.50%

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 13 254 10317 56.96 841 830 166.6
A 0 226 7266 38.64 841 830 166.6
A 3 137 6456 33.78 841 830 166.6
B 0 190 39316 246.41 853 834 156.2
B 0 189 29214 181.73 853 834 156.2
B 12 111 17561 107.11 853 834 156.2
C 14 238 135256 715.64 827 836 187.8
C 7 247 22962 117.8 827 836 187.8
C 0 10 16590 83.87 827 836 187.8
D 1 52 329354 1676.0 822 803 196.0
D 12 227 197764 1004.73 822 803 196.0
D 13 153 185901 944.22 822 803 196.0

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