ASTROSAT CZTI

Data Quality Report

Orbit 08554

Creation date: 2024-06-27T15:34:11.697059
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/AS1G07_060T01_9000001200_08554cztM0_level2.evt modeM0/AS1G07_060T01_9000001200_08554cztM0_level2_quad_clean.evt
Size (bytes)405,495,36086,434,560
Size386.7 MB 82.4 MB
Events in quadrant A2,999,538552,487
Events in quadrant B3,151,086562,290
Events in quadrant C2,835,547547,769
Events in quadrant D2,873,697523,528

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01262
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01308410
B01343928
C01265623
D01312219

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0250

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6189320.517046%
B6180661.067961%
C618080.129450%
D6182390.630864%

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 7496 6192 14 14 0.19% 0.23%
B 7496 6192 33 33 0.44% 0.53%
C 7496 6191 0 0 0.00% 0.00%
D 7496 6191 30 30 0.40% 0.48%

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 15 223 100395 664.6 740 726 150.0
A 15 239 35687 233.12 740 726 150.0
A 13 14 7570 45.64 740 726 150.0
B 10 16 202890 1425.24 748 731 141.8
B 0 214 21469 146.21 748 731 141.8
B 12 111 15679 105.39 748 731 141.8
C 8 128 12339 69.6 720 725 166.9
C 13 61 5551 28.92 720 725 166.9
C 8 112 5477 28.48 720 725 166.9
D 4 95 95077 556.12 707 689 169.7
D 12 233 23156 132.37 707 689 169.7
D 13 105 21666 123.59 707 689 169.7

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