Cho Oyu | 1998 NW side from N

A Japan expedition to Cho Oyu in 1998 via NW side from N, led by Keitaro Morooka, Jaggi Alexander. Summit reached on 25th September 1998. 3 members recorded.

Expedition Details

Field	Value
ID	3130
Imported	2026-03-06 18:04:49.359634
Expedition ID	CHOY98319
Peak ID	CHOY
Year	1998
Season	3
Host Country	2
Route 1	NW side from N
Route 2	-
Route 3	-
Route 4	-
Nationality	Japan
Leaders	Keitaro Morooka, Jaggi Alexander
Sponsor	Independent team on Cho Oyu (on Sloezen permit)
Success 1	True
Success 2	False
Success 3	False
Success 4	False
Ascent 1	306
Ascent 2	-
Ascent 3	-
Ascent 4	-
Claimed	False
Disputed	False
Countries	Switzerland
Approach	KTM->Tingri->BC
Basecamp Date	1998-09-01
Summit Date	1998-09-25
Summit Time	1050
Summit Days	24
Total Days	34
Termination Date	1998-10-05
Termination Reason	1
Termination Notes	-
High Point (m)	8188
Traverse	False
Ski	False
Paraglide	False
Camps	3
Fixed Rope (m)	0
Total Members	2
Summit Members	2
Member Deaths	1
Total Hired	1
Summit Hired	1
Hired Deaths	0
No Hired	False
O2 Used	True
O2 None	False
O2 Climb	True
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Taken	False
O2 Unknown	False
Other Summits	-
Campsites	BC(01/09),ABC(06/09,5600m),C1(09/09,5900m),C2(18/09,7200m),C3(24/09,7500m),Smt(25/09)
Route Notes	This team climbed independently of US (Sloezen) expeditions whose permit they were on, from ABC to top to ABC but shared facilities at BC and ABC. Jaggi's death very sudden and unexpected - was found dead in tent in C2 morning of 26th with oxygen flowing. Had returned to C2 from summit extremely tired, so was using oxygen in C2 all night; cause of death not clear but 2 doctors at BC thought it probably same kind of irregularity in heart beat.
Accidents	Nothing except Jaggi's fatal illness
Achievement	-
Agency	Great Escapes Trekking
Commercial Route	True
Standard Route	True
Primary Route	False
Primary Member	False
Primary Reference	-
Primary ID	-
Checksum	2456860
Year	1998
Summit Success	True
O2 Summary	Used
Route (lowercase)	nw side from n

Members

Field	Value
ID	22608
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY98319
Member ID	01
Peak ID	CHOY
Year	1998
Season	3
First Name	Alexander (Alex)
Last Name	Jaggi
Sex	M
Age	0
Birth Date	-
Year of Birth	1955
Calculated Age	42
Citizenship	Switzerland
Status	Climber
Residence	Harkingen, Solothurn, Switzerland
Occupation	Engineer
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	True
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	1998-09-25
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1050
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	306
Ascent 2	0
Ascent 3	0
O2 Used	True
O2 None	False
O2 Climb	True
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	From C3 to top to C2 & in C2
Death	True
Death Date	1998-09-26
Death Time	-
Death Type	10
Death Height (m)	7200
Death Class	5
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	Died night of 25/26 Sept (found dead in morning from possible stroke or CO poisoning)
Member Notes	-
Necrology	(1955-1998) Died 26 Sep 1998 on Cho Oyu from unknown illness
Summit Bid	5
Summit Term	1
HCN	0
Checksum	2433265
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	1
Name (lowercase)	alexander (alex) jaggi
Year of Birth	1955
Year	1998
Age at Expedition	43
Role	Member

Field	Value
ID	22609
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY98319
Member ID	02
Peak ID	CHOY
Year	1998
Season	3
First Name	Keitaro
Last Name	Morooka
Sex	M
Age	0
Birth Date	-
Year of Birth	1970
Calculated Age	28
Citizenship	Japan
Status	Climber
Residence	Fukuoka-shi, Fukuoka, Japan
Occupation	Businessman
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	True
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	1998-09-25
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1050
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	306
Ascent 2	0
Ascent 3	0
O2 Used	True
O2 None	False
O2 Climb	True
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	From C3 to top to C2
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	5
Summit Term	1
HCN	0
Checksum	2438701
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	keitaro morooka
Year of Birth	1970
Year	1998
Age at Expedition	28
Role	Member

Field	Value
ID	22610
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY98319
Member ID	03
Peak ID	CHOY
Year	1998
Season	3
First Name	Norbu/Nurbu (Nuru)
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1968
Calculated Age	30
Citizenship	Nepal
Status	H-A Worker
Residence	Beding, Dolakha
Occupation	-
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	True
Sherpa	True
Tibetan	False
Summit Success	True
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	1998-09-25
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1050
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	306
Ascent 2	0
Ascent 3	0
O2 Used	False
O2 None	True
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	2nd ascent of Cho Oyu
Necrology	-
Summit Bid	5
Summit Term	1
HCN	0
Checksum	2437845
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	norbu/nurbu (nuru) sherpa
Year of Birth	1968
Year	1998
Age at Expedition	30
Role	Hired

3 recorded members.

Name	Sex	Year of Birth	Citizenship	Status	Residence	Occupation
Alexander (Alex) Jaggi	M	1955	Switzerland	Climber	Harkingen, Solothurn, Switzerland	Engineer	Details Other expeditions
Keitaro Morooka	M	1970	Japan	Climber	Fukuoka-shi, Fukuoka, Japan	Businessman	Details Other expeditions
Norbu/Nurbu (Nuru) Sherpa	M	1968	Nepal	H-A Worker	Beding, Dolakha	-	Details Other expeditions

References

Field	Value
ID	5266
Imported	2026-03-06 18:06:36.307770
Expedition ID	CHOY98319
Reference ID	01
Year	1998
Type	3
Journal	HIGH
Author	-
Title	-
Publisher	-
Publication Date	1999
Language	-
Citation	198:40 (May 1999)
Yak 94	-
Notes	-

1 recorded references.

Expedition ID	Journal	Author	Title	Publisher	Citation	Yak 94
CHOY98319	HIGH	-	-	-	198:40 (May 1999)	-