ASTROSAT CZTI

Data Quality Report

Orbit 47243

Creation date: 2024-06-27T23:33:18.813054
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/AS1C09_005T01_9000006304_47243cztM0_level2.fits modeM0/AS1C09_005T01_9000006304_47243cztM0_level2_quad_clean.evt
Size (bytes)464,780,160111,306,240
Size443.2 MB 106.1 MB
Events in quadrant A7,199,813718,548
Events in quadrant B3,250,730780,618
Events in quadrant C3,110,742744,383
Events in quadrant D3,152,187685,377

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0259672
B0138112
C0136052
D0138632

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63294076.430716%
B6329701.106020%
C6329961.516827%
D6329831.311424%

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 7554 6330 270 270 3.57% 4.27%
B 7554 6330 16 16 0.21% 0.25%
C 7554 6330 48 48 0.64% 0.76%
D 7554 6330 70 70 0.93% 1.11%

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 3462506 23387.38 717 700 148.0
A 9 191 953183 6434.82 717 700 148.0
A 13 254 10347 65.17 717 700 148.0
B 0 190 165153 1174.53 733 711 140.0
B 0 200 101109 717.09 733 711 140.0
B 5 171 24811 172.13 733 711 140.0
C 10 9 207251 1216.71 732 736 169.7
C 14 254 29852 171.54 732 736 169.7
C 7 175 9207 49.91 732 736 169.7
D 12 1 281400 1533.81 727 705 183.0
D 2 234 25609 136.08 727 705 183.0
D 13 171 20951 110.63 727 705 183.0

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