ASTROSAT CZTI

Data Quality Report

Orbit 48329

Creation date: 2024-09-04T15:23:57.124388
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_029T01_9000006422_48329cztM0_level2.fits modeM0/AS1A13_029T01_9000006422_48329cztM0_level2_quad_clean.evt
Size (bytes)424,440,000104,814,720
Size404.8 MB 100.0 MB
Events in quadrant A6,271,585698,210
Events in quadrant B3,256,435721,514
Events in quadrant C2,792,487692,077
Events in quadrant D2,910,621630,862

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0234441
B0137061
C0126381
D0129871

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61831442.328967%
B61841111.794955%
C618370.113214%
D6183260.420508%

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 7353 6184 34 34 0.46% 0.55%
B 7354 6185 57 57 0.78% 0.92%
C 7353 6184 3 3 0.04% 0.05%
D 7353 6184 17 17 0.23% 0.27%

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 3499313 23872.23 711 698 146.6
A 7 3 14225 92.3 711 698 146.6
A 13 254 12002 77.13 711 698 146.6
B 5 255 244758 1760.01 705 684 138.7
B 4 21 216352 1555.17 705 684 138.7
B 12 111 17705 122.74 705 684 138.7
C 12 2 38920 231.17 698 703 165.3
C 15 208 16399 94.94 698 703 165.3
C 1 16 6027 32.2 698 703 165.3
D 7 55 51838 284.96 705 682 179.5
D 12 7 30990 168.83 705 682 179.5
D 2 234 27666 150.31 705 682 179.5

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