ASTROSAT CZTI

Data Quality Report

Orbit 45886

Creation date: 2024-06-27T23:17:19.905138
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/AS1T05_188T01_9000006138_45886cztM0_level2.fits modeM0/AS1T05_188T01_9000006138_45886cztM0_level2_quad_clean.evt
Size (bytes)664,721,280106,035,840
Size633.9 MB 101.1 MB
Events in quadrant A6,098,193730,565
Events in quadrant B8,896,146587,116
Events in quadrant C3,211,519754,516
Events in quadrant D5,847,954641,825

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0224471
B0312771
C0148841
D0222427

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71263034.252035%
B7127206528.974323%
C7127560.785744%
D71266459.051361%

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 7206 7127 24 24 0.33% 0.34%
B 7207 7128 1309 1309 18.16% 18.36%
C 7207 7128 4 4 0.06% 0.06%
D 7205 7126 464 464 6.44% 6.51%

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 10 83 2870992 16972.33 808 790 169.1
A 4 0 76532 447.88 808 790 169.1
A 0 247 10591 57.96 808 790 169.1
B 3 112 3628811 25170.59 726 703 144.1
B 0 189 1882695 13056.63 726 703 144.1
B 4 171 309404 2141.66 726 703 144.1
C 12 2 40072 206.8 801 805 189.9
C 10 20 27786 142.1 801 805 189.9
C 2 14 8203 38.96 801 805 189.9
D 13 249 1039589 5340.22 774 749 194.5
D 1 52 806445 4141.73 774 749 194.5
D 5 171 337277 1729.94 774 749 194.5

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