ASTROSAT CZTI

Data Quality Report

Orbit 48268

Creation date: 2024-09-06T12:31:14.875259
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_48268cztM0_level2.fits modeM0/AS1A13_029T01_9000006422_48268cztM0_level2_quad_clean.evt
Size (bytes)1,281,847,680213,367,680
Size1.2 GB 203.5 MB
Events in quadrant A14,362,9571,444,321
Events in quadrant B7,448,8741,552,570
Events in quadrant C6,730,8921,489,459
Events in quadrant D17,801,111984,647

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0607297768
B0362754506
C0342954103
D0686426009

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A033241
B033334
C033743
D033539

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A142154593.228983%
B143622661.852110%
C143531350.940570%
D14311424629.669485%

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 26881 14374 10 10 0.04% 0.07%
B 26885 14514 73 73 0.27% 0.50%
C 26885 14539 49 49 0.18% 0.34%
D 26883 14500 4070 4070 15.14% 28.07%

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 8156715 24273.58 1602 1566 336.0
A 13 254 29112 81.99 1602 1566 336.0
A 3 137 18947 51.73 1602 1566 336.0
B 4 21 648797 2003.7 1620 1566 323.0
B 5 255 139699 427.63 1620 1566 323.0
B 5 207 94706 288.34 1620 1566 323.0
C 12 2 240744 629.31 1602 1610 380.0
C 14 254 205519 536.61 1602 1610 380.0
C 3 233 25632 63.22 1602 1610 380.0
D 2 165 8658992 24742.12 1394 1350 349.9
D 12 3 2278709 6508.32 1394 1350 349.9
D 2 249 749251 2137.38 1394 1350 349.9

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