ASTROSAT CZTI

Data Quality Report

Orbit 14402

Creation date: 2024-06-27T16:54:38.745922
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/AS1A04_023T02_9000002124_14402cztM0_level2.evt modeM0/AS1A04_023T02_9000002124_14402cztM0_level2_quad_clean.evt
Size (bytes)308,134,08050,483,520
Size293.9 MB 48.1 MB
Events in quadrant A2,065,721316,413
Events in quadrant B2,187,407320,495
Events in quadrant C2,586,741314,555
Events in quadrant D2,226,224301,625

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A083342
B087731
C0104371
D090181

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0800
B0800
C0800
D0800

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3898380.974859%
B3898621.590559%
C3898802.052335%
D3898852.180605%

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 5274 3900 7 7 0.13% 0.18%
B 5274 3899 4 4 0.08% 0.10%
C 5274 3900 0 0 0.00% 0.00%
D 5274 3900 72 72 1.37% 1.85%

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 9 143 34670 321.24 522 512 106.3
A 12 189 13197 119.3 522 512 106.3
A 11 29 5571 47.58 522 512 106.3
B 0 189 64519 645.54 518 507 99.2
B 0 229 41415 412.54 518 507 99.2
B 4 173 26342 260.54 518 507 99.2
C 3 233 613267 5191.19 506 510 118.0
C 13 61 3570 25.92 506 510 118.0
C 3 232 1396 7.51 506 510 118.0
D 2 120 173451 1431.08 499 488 120.9
D 15 0 120995 997.06 499 488 120.9
D 10 199 15394 123.33 499 488 120.9

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