ASTROSAT CZTI

Data Quality Report

Orbit 44998

Creation date: 2024-06-27T23:08:53.143146
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/AS1A13_020T01_9000006040_44998cztM0_level2.fits modeM0/AS1A13_020T01_9000006040_44998cztM0_level2_quad_clean.evt
Size (bytes)501,894,720103,968,000
Size478.6 MB 99.2 MB
Events in quadrant A5,776,151693,627
Events in quadrant B3,651,204713,484
Events in quadrant C2,953,565702,572
Events in quadrant D5,707,571597,435

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0216661
B0151521
C0132201
D0212671

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63172343.704290%
B63182103.323837%
C6318520.823045%
D631865510.367205%

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 7287 6318 13 13 0.18% 0.21%
B 7288 6319 45 45 0.62% 0.71%
C 7288 6319 6 6 0.08% 0.09%
D 7288 6319 481 481 6.60% 7.61%

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 2440345 16021.78 734 720 152.3
A 0 247 327099 2143.43 734 720 152.3
A 1 251 65250 423.79 734 720 152.3
B 5 255 184529 1278.89 732 711 143.7
B 0 155 92508 638.66 732 711 143.7
B 0 186 91055 628.56 732 711 143.7
C 12 2 44143 254.94 724 731 170.3
C 15 208 32058 183.97 724 731 170.3
C 3 233 22147 125.77 724 731 170.3
D 13 249 1039528 5905.63 698 676 175.9
D 1 52 667853 3792.74 698 676 175.9
D 5 222 404380 2294.96 698 676 175.9

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