ASTROSAT CZTI

Data Quality Report

Orbit 12085

Creation date: 2024-06-27T16:22:13.891139
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/AS1G08_065T01_9000001796_12085cztM0_level2.evt modeM0/AS1G08_065T01_9000001796_12085cztM0_level2_quad_clean.evt
Size (bytes)210,504,96026,827,200
Size200.8 MB 25.6 MB
Events in quadrant A1,654,395161,346
Events in quadrant B1,708,498163,672
Events in quadrant C1,254,459164,197
Events in quadrant D1,599,807156,806

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A065332
B066341
C051971
D064661

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0480
B0480
C0480
D0480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A22981386.005222%
B22981667.223673%
C2298401.740644%
D2298843.655352%

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 3654 2300 34 34 0.93% 1.48%
B 3654 2300 58 58 1.59% 2.52%
C 3654 2300 0 0 0.00% 0.00%
D 3654 2300 36 36 0.99% 1.57%

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 13 251 236266 3528.98 325 318 66.9
A 1 162 63720 948.28 325 318 66.9
A 1 178 33519 496.57 325 318 66.9
B 4 239 346946 5604.18 324 317 61.9
B 15 204 54632 878.15 324 317 61.9
B 11 51 45795 735.27 324 317 61.9
C 13 61 2420 27.9 321 322 75.2
C 14 67 2360 27.1 321 322 75.2
C 3 202 777 6.05 321 322 75.2
D 8 195 166616 2153.77 319 310 77.2
D 10 199 121997 1575.93 319 310 77.2
D 1 52 65227 840.72 319 310 77.2

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