ASTROSAT CZTI

Data Quality Report

Orbit 17352

Creation date: 2024-06-27T17:35:22.029106
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/AS1A05_165T12_9000002562_17352cztM0_level2.evt modeM0/AS1A05_165T12_9000002562_17352cztM0_level2_quad_clean.evt
Size (bytes)488,744,64070,888,320
Size466.1 MB 67.6 MB
Events in quadrant A3,277,426432,493
Events in quadrant B3,313,497438,132
Events in quadrant C3,327,997418,062
Events in quadrant D4,442,322405,133

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139472
B0140463
C0141022
D0174912

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6487851.310313%
B6486931.433858%
C64861141.757632%
D64863014.640765%

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 7637 6487 0 0 0.00% 0.00%
B 7636 6486 1 1 0.01% 0.02%
C 7636 6487 0 0 0.00% 0.00%
D 7636 6487 185 185 2.42% 2.85%

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 23 8761 46.69 849 833 169.8
A 0 226 7845 41.29 849 833 169.8
A 12 194 6176 31.46 849 833 169.8
B 0 229 18521 111.33 840 820 159.0
B 12 111 18384 110.47 840 820 159.0
B 11 111 16331 97.56 840 820 159.0
C 14 238 125920 666.16 813 820 187.8
C 3 233 33608 174.6 813 820 187.8
C 13 61 5794 26.49 813 820 187.8
D 13 232 718233 3662.38 812 790 195.9
D 5 222 418273 2131.15 812 790 195.9
D 13 189 102340 518.39 812 790 195.9

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