ASTROSAT CZTI

Data Quality Report

Orbit 05766

Creation date: 2024-06-27T14:58:54.495271
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/AS1G06_002T01_9000000742_05766cztM0_level2.evt modeM0/AS1G06_002T01_9000000742_05766cztM0_level2_quad_clean.evt
Size (bytes)276,840,00053,732,160
Size264.0 MB 51.2 MB
Events in quadrant A2,006,336329,332
Events in quadrant B2,096,003326,175
Events in quadrant C1,994,437328,156
Events in quadrant D1,969,967317,895

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148895610
B0150075717
C0148665515
D0149615660

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B020
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A014755
B014747
C014834
D014848

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4570220.481400%
B4544130.286092%
C461080.173536%
D456970.153206%

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 7580 5808 0 0 0.00% 0.00%
B 7581 5768 0 0 0.00% 0.00%
C 7582 5847 0 0 0.00% 0.00%
D 7581 5852 1 1 0.01% 0.02%

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 12 194 5207 43.81 519 508 107.2
A 0 226 5043 42.29 519 508 107.2
A 15 236 3497 27.87 519 508 107.2
B 15 204 33556 322.75 522 509 102.4
B 0 219 25374 242.84 522 509 102.4
B 12 111 9499 87.8 522 509 102.4
C 8 128 9251 73.99 506 508 118.2
C 8 112 4362 32.61 506 508 118.2
C 13 61 4060 30.06 506 508 118.2
D 11 241 28144 221.27 501 486 125.0
D 2 14 19767 154.25 501 486 125.0
D 8 195 11023 84.3 501 486 125.0

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