ASTROSAT CZTI

Data Quality Report

Orbit 12229

Creation date: 2024-06-27T16:24:06.960581
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/AS1C03_014T02_9000001806_12229cztM0_level2.evt modeM0/AS1C03_014T02_9000001806_12229cztM0_level2_quad_clean.evt
Size (bytes)487,117,440126,630,720
Size464.6 MB 120.8 MB
Events in quadrant A3,657,537866,436
Events in quadrant B4,311,954852,521
Events in quadrant C2,975,266869,515
Events in quadrant D3,398,892826,129

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148402
B0166831
C0128961
D0140351

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6023891.477669%
B60234888.102275%
C6023580.962975%
D60231442.390835%

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 7269 6024 7 7 0.10% 0.12%
B 7269 6025 252 252 3.47% 4.18%
C 7269 6024 0 0 0.00% 0.00%
D 7269 6024 64 64 0.88% 1.06%

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 13 251 215743 1393.94 770 756 154.2
A 1 162 134384 866.42 770 756 154.2
A 8 15 116057 747.59 770 756 154.2
B 4 239 1100051 8018.35 745 729 137.1
B 11 51 99179 718.09 745 729 137.1
B 0 168 39492 282.73 745 729 137.1
C 15 208 41237 239.4 746 751 169.1
C 4 175 13529 75.56 746 751 169.1
C 13 61 5496 28.06 746 751 169.1
D 1 52 196662 1117.42 745 725 175.3
D 2 33 121029 686.09 745 725 175.3
D 13 104 88172 498.7 745 725 175.3

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